\documentclass[12pt]{article}
\usepackage[Mickael]{ammaths}


\begin{document}

\module{Breaking the Vigenère cipher}{03}{15}{2 periods}

\prereq{Frequency analysis - Vigenère cipher.}

\object{\begin{itemize}
	\item Understand the weaknesses of the Vigenere Cipher.
        \item Use a software to decipher a Vigenere cipher.
	\end{itemize}}

\mater{\begin{itemize}
	\item Eight different ciphers, available on paper and as text files from the school's server.
	\end{itemize}}

\modpart{Deciphering}{55 mins}

Working in groups of 4 or 5, students have to decipher a Vigenère cipher using the instructions on the website :

\begin{center}
math.ucsd.edu/~crypto/java/EARLYCIPHERS/Vigenere.html
\end{center}

Plain texts must then be punctuated and paragraphed and then sent back to the teacher, to be graded.








\pagebreak

\moddocdis{Breaking the Vigenère cipher}{03}{15}{Cipher 1}

\begin{itemize}
\itemb Your task is to decipher the cipher below, that you will find in the  {\tt Partage Profs / Terminale Euro}
folder.
\itemb Go to the website {\tt math.ucsd.edu/$\sim$crypto/java/EARLYCIPHERS/Vigenere.html} and follow the instructions to
break the cipher.
\itemb Once the decryption process is complete, recreate the initial plain text by guessing the punctuation and
paragraphs, then send your final answer to {\tt mickael.vedrine@free.fr}. These answers will be graded.
\end{itemize}

\begin{center}
\begin{minipage}{13.2cm}\tt
EBGIQ LSVRY ENJON CIUZC NNQPZ PCPQF LHIOB THVRC
XITXG YAEYL NYPDP LNGCY XUPCK THFGM YXGBD FFNIS
YZQBR FHCDC WSYRY ENJOK THFSL PPKDY MFAMM YWGXR
CUVOQ ZHKCR SUVSL EBGWM CHKXE TNYSJ WVGSL LVQNW
EBCDG DAQSL RNQLC SUPQC ONJOK LHIYG YAVYZ PBCXE
PXJKB MYGXL LGGNK ZCUDT ZHNSN HCILW OIVSL RCHEL
HCUON LLGXR DVWDF PQCCL ZNIYG YAVYC XVCBP LMUDF
PHCWC THUYD LLCCR SUVGY DMVSJ WJQCQ TVNOZ JVGSL
RBWXE FHFOP TNVYR SYYYP WXKXE PHGBY WUPNN LLVSA
FFCBJ JIPDF LNDSR ZZKDI YIYXY DNJOB PUVRU LLTKL
EBGGY DUNPP PXUZY YANOP LHFRC EIQUY XITON ZMKDG
GYCZN CICMF EIVRC DCVEY ECQXY YXJKB NIPMC YNTKR
PXJSQ XCPNM YNJON CIUZC NNQPL ZNDOG YAJKL RYFSL
EBGWM CHKXE LHFWM DNRKP ECEEJ LLNIM YNJON CIUZC
NNQPP PGQFG YACVJ EBGMP FGDVG YAOYP EUTPP ZGCBM
FHFKQ EIPOG YBKCA PFNGY WFYSR SUUZM ZHUYD LLVRC
HITUF LXVKI PHJSK QCXOU PYMCY YXTOB FWGNR SYUZM
ZHVYQ ZGGDF THIVG VYCXY TFHSJ PZQBR FHCDC WSPYM
YYGFC CWCWC EIERY YAGDF PVGNB THIRC CYQBC WMGDF
PSYYS WXJKT PXKCA ZPGBC ONJOU ZLNNQ SYCFG PMVWY
ENTOQ DCVGY DUNKP RYCXB SYCFW DNQXC EBCDU LMEEP
CYPDJ JNJOM MDGMR ZZJSQ LNVOL ECQXQ LHFKR DIOON
ZCPDY SOIOQ EURVC SUFLC PHJKK XYTOB THVYG EUUKL
LHERM CZQBK LHCMJ PMOYG DNUKR OIYXD LWKXE EBGGY
WFIBG AJGNR SYKBM YLKXE THDYR SBCXB DVTKA PXJSQ
WYICY RUKXQ ENJOQ EIPOQ ZHGSR SYTCG OYCXB SYCFC
OBKCQ SIWVB PLUMY FAJDD TLGKL OUTOB XCUDD TFNOB
SCUFG DCQXZ FNVRC MFQMI DFKNM FNYSR SUHKG YNCXB
THCZN CIRBG LNGDG YENSL RHQSQ PGQSQ EGCXY RYFDM
PUUOG EUYKW QLQWR SYJYJ PUPNN PYTOB THUSB PUVDF
PZCBC YXYKQ LHQDF PLDVM NECXB EBGWM CNCBY CIWXB
TNNYM VYFCS DJKMG ZOUVW DNTYL RUPND CYURH FMVSL
QLQXR ZZKDU LMCXC HMRYM YCVGY DMJSL JUURC DNWNG
PXKDF PBGKP ONJOA WURZG YADOF THFRG XBGDS CHGNF
TMJOY ONGXB ZHUDU LHISL RUNSR EFGBG QZQPY RIPIY
YXUKU DYXOP LFQPR SYYKP OYPCU LNERG YAJSK EBTYS
RBVRC MUTC
\end{minipage}
\end{center}

\pagebreak 

\moddocdis{Breaking the Vigenère cipher}{03}{15}{Cipher 2}


\begin{itemize}
\itemb Your task is to decipher the cipher below, that you will find in the  {\tt Partage Profs / Terminale Euro}
folder.
\itemb Go to the website {\tt math.ucsd.edu/$\sim$crypto/java/EARLYCIPHERS/Vigenere.html} and follow the instructions to
break the cipher.
\itemb Once the decryption process is complete, recreate the initial plain text by guessing the punctuation and
paragraphs, then send your final answer to {\tt mickael.vedrine@free.fr}. These answers will be graded.
\end{itemize}

\begin{center}
\begin{minipage}{13.2cm}\tt
HODEB TIHVT UWCGJ YBIRO LLQZT AINHD PDIAV BEIGE
NHCIX HGKTR VSHFE RZSVB VFFRR LPMGL RDTOG LRDPI
UAGHT NKIBB IOJMN ZASFU ARHTY EPZXC BOSOL IEDBK
RAKCU HWETL VBZOW AYCRK GIPYB OIEGV PNKHR MSIUT
BPXGJ OHBSS CIXSP BIIPY UACLV BVIET BHWEJ TESTT
FRRJT NWOEH WIJWN GPFKE EOALR NXVBO IPBFZ AJCES
PMKHR GTWVR RZDUU SBICD JWUWR HNEES IHVRR TDRVP
HPAIT SBICD JWUWR HZNGI GNDEN BITYE LKTRV EISGY
FNRGE RFBYS BAEDG VTRVF BFTNF TZWCE SUGGB ACLFC
JNUSJ SGEEE NFQYR NQGJG XEFHT DJUPV IHZNT GPSJT
ROATY BRHGA PEQOC DNEES IHVRR TDRVP ESHSZ NTOCD
GEEGD NRLGV TRVFB FTHVT EWTDE OGHDM RKRZX TKLRB
DIJEF PTLFW UWBTY EPCPC YYNFS OWTUS REETE OAPFS
GCUFZ CRPJZ QEQZX KVAAC KEITH FCEUH VJTTY ELRVO
KTUSI UINGO QLVWB FZIEG ESPLC YJSAL EOJHW EFVRF
CIXHG QDATH RGLEI ENFGI MIAUP NUTUS CENBR FLACD
SZNEI WNGVL VAZWC GZNGV TLRMC ZXGYT RJTRP TUWCG
NAFUD IEGEW VHKWU WRHNA FHDTY EAWVH KTVAT CCIZP
TRNHL SKEIY GVXNX WNGVO ZNTKG OEGGV TCCIZ PTRKH
EIHTR BEWRK BELWC TFSBT IMFRG OGSYI SHTDY IFKTI
XHGAD VVDUW HFFOQ OBNGI TSDNZ TSZTW LPVBE AEIPV
XSFTU SGFFO GGAIG PRRWI JFVBV EISYC HTKHR WGGII
CCCTY EQFPI EPVDT AEDJV TNKHR KDRCD UOSSK OCDTD
THHFC IEGUS LAJOJ WCGKH RDDSK PBBTM VNGCU HZSZS
TTZNT KXTYT USSIJ TNBIC FBOZT SKOUW HHFLQ CCASR
VQZKV YJVXC YWNGA EKSSO REZTA CIHZN TADRV TUOCA
COAUU LRTAO XLNIG VPTGI RQTGI ICOCD POHQP NKBYI
UFRWN ZAHVT UCJGY TVTNO LSJWC GPOHA XGYTT SIYFU
EVPNU AARUO FTBBI HVPVD TOITU SZEPM VUWTT OZSDU
K
\end{minipage}
\end{center}

\pagebreak 

\moddocdis{Breaking the Vigenère cipher}{03}{15}{Cipher 3}


\begin{itemize}
\itemb Your task is to decipher the cipher below, that you will find in the  {\tt Partage Profs / Terminale Euro}
folder.
\itemb Go to the website {\tt math.ucsd.edu/$\sim$crypto/java/EARLYCIPHERS/Vigenere.html} and follow the instructions to
break the cipher.
\itemb Once the decryption process is complete, recreate the initial plain text by guessing the punctuation and
paragraphs, then send your final answer to {\tt mickael.vedrine@free.fr}. These answers will be graded.
\end{itemize}

\begin{center}
\begin{minipage}{13.2cm}\tt
SIDWI SEAJJ GNELN IETHM YFAXD BYFSI RMRNB ATPVG
ITIAY FDYHI MJNMB MWPRK HMUJD GNGKI ITGIS PUZIB
KIETH MGVTN IAABC QEBFO ATDAK SORLM UPUZI VKPTN
EEFOD KRNLM LGTMJ QRONO DPRTI VXCIX DAJBN MIVKI
EZRMV TBKEA SVZFE LZOTN EJCPS YOUKI EYKGN BSNAH
PUHUU OYBNJ TPLOD KRPVB DYOVK IENOZ ZAOTT PIFAZ
EVVER GIVCB TKRJL UFURV FXTNE IZSWG SPFUA TDPVB
VEAVU JNZHM FMDIE AJQIZ BMYJN JTPVH AXDME FRYSP
VEAEO CEHMG NERTT XEIUJ NMWIK FRCET CURKA LZOGG
NGNBY BIUVT SZOWU CAIKI CJTZL MNBYG NLCJT GCQXB
ROTXI PBGBT PXOAL LEUBK AOFPD ODMRU OKMXC PYGNI
BFDLL IDFAT YVVBR KRBFU HKPQK UHKFI CMFXO UKIEY
HMUSO UFPRE BXOSV OTNEK IVSZG WFEMU RVZOG NEARJ
DIHMV SFALT PHOUD UFSNO NOPPU XGZRD EYAQU UHKIV
UVSZR QFVSZ RMREL KRBYF VUIKV XAYHQ XIEXP QKDHK
DBYBT BIUVT EDPMT UEJAV UIEXE ICJZK DBYBT SOAKV
NASCR MLETP VZOAN ODBNO NBYFP OTERT ITFIT UAEOC
EHWUM IEJTC AAEUE TTQIF LEUVV YPKCB VETNE IJTAY
SQETG AITUX AYAER SEZHI KXOSE VNFRK ABCFA YTMHV
ARTWK IEORJ IPTNE ZJXHK NQKDA SEBFJ NBEVK JVKKQ
CMITG JLUIZ NMMFR ZHMCF SYCPR OGKDB YFSOT CRUIU
NAFNE CHIKJ DUNBS FLOED VXEBE UVUSG ILMJM KSICU
HUUOY JSKEG FVKTO ENIOO AUPPU GRMNJ GMSAZ SSGIL
KIEYW QDNEX JWTBS ZAEZH GYHWE PRKDB FNEKT GFVYU
UZXSA IEEZH GYEPJ BIJVQ DFSLA UFVSL AUZMY ONBYF
GAITU TIXWQ CMDUB GKIEC AGZUH ONSZP NIEJI PKKYW
LSFGT PVSSR EO
\end{minipage}
\end{center}

\pagebreak 

\moddocdis{Breaking the Vigenère cipher}{03}{15}{Cipher 4}


\begin{itemize}
\itemb Your task is to decipher the cipher below, that you will find in the  {\tt Partage Profs / Terminale Euro}
folder.
\itemb Go to the website {\tt math.ucsd.edu/$\sim$crypto/java/EARLYCIPHERS/Vigenere.html} and follow the instructions to
break the cipher.
\itemb Once the decryption process is complete, recreate the initial plain text by guessing the punctuation and
paragraphs, then send your final answer to {\tt mickael.vedrine@free.fr}. These answers will be graded.
\end{itemize}

\begin{center}
\begin{minipage}{13.2cm}\tt
QPWZA FBAVI ENSZV EMGUG IBWZG MFLPQ GAZUC ZSHPA
ECUQU FMVQU MAJMG NOLXG AJDMJ MPWIN IUQAD QYFLK
YFQIY MLWWH FBWXT AVDMO ICLPV TYKBC DNGNV TCFOU
FBWGY AHVMT MFGCF TIOBJ QMFWY BFGEF DCNMT SYLAV
AQGZM ALZWY FBWUC WYJAQ RXAKV UIFIT UYKTQ AEMXV
TYKXG XFAVI AZLPG IIJLU KYLBJ QLWQU FBWKQ ZMLIP
FXWAK DYLWH UHVAQ YYHWK ZNAVV TYLEK ENAVI WHGBV
UHYZC HYDQP SHWBU AZKXC OYLQO QIFEJ UWZIO QNSXJ
ALAKC XZAVI QLUIP NYHCV FIAVF UWSBG FBSBJ QLWPG
DYAAV TYHWK ZNOPG DYABC XFTMI MHKWO QNZQP SVWOC
ZQZMP FBWOW UFVWH MMKIU ECFAG ZLGTN QXEQU FYJBG
MNAUG IBGAC INZQP SMVQH RYJMP FFQNT AGGBJ QLHMQ
BFWIP PIFMQ RNZMY MSKBJ MNZMU MQLPK ZAKLK RZWZG
ZNDGH DIEWV TYJXG AJDMY MMAVU QYAVI ANZMT BYGXN
QUKBJ UHYAN MNWZN ALVLQ IHWGQ RNZMI GCDLU MCVEG
FIGSR UNQWP TCEJG OUMAG TYVTQ ENTWV TJSZG ZNKIV
MHWIT XSSOG UNZQP WNZIV AHJMH XYUBK AHOMU TIMTF
TUNMY AHVMT QXSJK FGGZG MVGCV FBSBD GNABY MMECE
TYSZN UYJMX QHLPC ZNZIV IBWVO AMLXG AJDMH ALYWV
FBSBV TYNMT KIDLG ENKBQ DCWAC DYKWQ ZYJWT XULMT
MVGCV NFGWF XULMT AHLPG KNGWM FBWJN AIVWW FNGUC
WYLPG ENGZK QMEWT QUUKG BNSJN QNGKJ UFVZG ZIJIV
XYSAV FILPG BYGXN QQZWJ MXLWT QUVBJ QGLWE TCDLT
QHJIV TYJBJ MHLPG OBATF DYFBJ QGKMN HYKEJ AIFBJ
QQZWN QUJMS GCLMM QYFWP NFGWF BLGDK PYVQV EVWQP
SMZMF NSLPG PYKMT HCFOC ZXLPG ZQGVF QLWLY TYJMV
TYKBQ DCWAY QHLIP PYSZN UYJAV UFDEJ QHKWO QNZQP
SCFBJ QXSZM ZYKAQ RNZMF QYHMU FWSDG EUFLI XIGUK
QMLNQ DYKBU FBGCI TNOPC FUJMV TYQBJ QMWKT QULCT
QMAEK XFGJU QLNMV TYE
\end{minipage}
\end{center}

\pagebreak 

\moddocdis{Breaking the Vigenère cipher}{03}{15}{Cipher 5}


\begin{itemize}
\itemb Your task is to decipher the cipher below, that you will find in the  {\tt Partage Profs / Terminale Euro}
folder.
\itemb Go to the website {\tt math.ucsd.edu/$\sim$crypto/java/EARLYCIPHERS/Vigenere.html} and follow the instructions to
break the cipher.
\itemb Once the decryption process is complete, recreate the initial plain text by guessing the punctuation and
paragraphs, then send your final answer to {\tt mickael.vedrine@free.fr}. These answers will be graded.
\end{itemize}

\begin{center}
\begin{minipage}{13.2cm}\tt
FOTBR JYBAX WKFZL TXLWB EXTRX AXLGR WZRBR XKWNK
ICJXA TRKXW GBXJX PXEPS TBAMY IYTXT RUJTX ILRSB
LTVVG QZZII YPTGT VTXEX QZLPM XBGJK MUYKT CMUIK
BMXGX YJAMT VJYPX WMWKM KXRTJ JXMAV JVANK VFVWM
MEDQL VSDUI KTXZA MERWG JIDBR XAMKR WDFTE UYKYP
BLXLW BEXEE IBAXW VJTXI LRSBL TVVGG MNVKQ MTGHV
QMIAE EYAMT RUFZW LFZLB AXCTF ZKRXY JLBLG NTZEW
AZYPB MWMFA MEEEI AVESL IAVTT VXIGW STJIG LTVTX
EXHFS BEBZV TVMAI UNAVT RPRWK XXYFV BGPVX AATRU
HZTYX VIXTK XJTNM AIDZT MBZVW AXMLV DTBOI FSJTE
PJTPI EEEJB LFEPG MMAIG QIVXA YJZXM LVNZU HHPJI
MLMKX BXTFL YBAXC CNDXX PJJEA XVVNV PHVCI AHYXY
JQKHA EBPBV LFWJB MZVWG ATRUN TRTVF ZVWML VHMGM
IITNM AIZWP XTHJB PXGKF IAZXX KTOXM LVWBA XCKJT
EMLVX BHKCF KWGXT RWBBV YCFZI EEEJB PASJJ QGAES
NBTGX JBIMV LVIEB MLDNT WBRKJ ZXLXY ZOXVS EYQGX
RKBZX VOZSO LEESX WYBGV XTTIM EYWTG SKMMK PSIQL
PAMTM ETLME FAMKS ETUBV ECYMK FWINO AMRVC BWHSI
FVWML VSLBW RFYPB GKRGW NMMKG MVTYJ JBATX JTZMH
JKMQG ZSEQG ATTGJ VLBRF ZBXKW GFKXT RZSBX EPZLM
GMWGJ KBXWN TCEWE KQMTL XYFDX YSLSL LHQVT VXMST
TUIEE ZSBHT RPBIR GSFSM LXVZT CLECS JTBXZ VXQGM
LRYAM HVPGM VTYJJ IKTGV VCBMI KMIML XLUQW PSLQL
GXZVW MOXRY FDXWM JHWOX VVIAE HSUUM HIPVG MEBIM
JQGTP CXWKM WFKWM AIIYP BGKJY PHNKY KWKXB RRXEX
XYJZX TVVXW FXTVT XEXAY TPTOI RQMZX RUYPT MXYJE
AHPVZ VBOII XMBLG RWZBX HZSIE XEKMM KUEXG GTGSC
IUTGX YJGKX VZLPM MSFTB AXVGJ WIEIJ FGAHP UTVBY
LVXKT KVPNV ZMLVJ VMBVV ZVBOI IXMBG EJFKD KMXMB
MAEKR MTGWY JAVTV IDQGZ LZRAX EJRSL MAIJF KDBRJ
NLXML VXIVD FVHIN LIKMM NGMMJ ZLXGF SBTBR JJDXK
CKMQG ZMEHT NWMEL PBFEE IBAXW RHSHY GFZZL XAYNK
AVSEY IBGWY NUTGH KMMLT GBFTK XEUDI LBXNJ ZXMSN
MQVAX YJZXI PPNAP XPCFT EMVZG IEFCK MATKI KWCXY
SIFOB OIEAI ENIFK BKNI
\end{minipage}
\end{center}

\pagebreak 

\moddocdis{Breaking the Vigenère cipher}{03}{15}{Cipher 6}


\begin{itemize}
\itemb Your task is to decipher the cipher below, that you will find in the  {\tt Partage Profs / Terminale Euro}
folder.
\itemb Go to the website {\tt math.ucsd.edu/$\sim$crypto/java/EARLYCIPHERS/Vigenere.html} and follow the instructions to
break the cipher.
\itemb Once the decryption process is complete, recreate the initial plain text by guessing the punctuation and
paragraphs, then send your final answer to {\tt mickael.vedrine@free.fr}. These answers will be graded.
\end{itemize}

\begin{center}
\begin{minipage}{13.2cm}\tt
PTLPQ HMDDL SEHHL PGWIU OIRWU HSVDM KFDGR OEEJP
WOHTQ VFHDJ PDYPA RSDCF LFXHF LDUDP JUGXM BSHFS
PDHDA HLATB IERPS ZEPHU LLAPQ IEXCE ZQJXB AHTNU
LRTRS YIDJQ AHPIG ZTDHY FTWTG YCJGG VSXIW DAHIF
LCJGG VUHIF PNVPZ VUIIF LMHWM YTANY MTTGR OENVM
ACJGG VUHPZ VUIIF LLPCR LRCIF HTHDJ PDWPB OUCVM
CEGIF LSITP UOUWG ZBDPR AHTNQ AAGIC KTDQC JOBTA
BRXDS ZAQDS ATWTU HYXCU OIRWT HRXDS ZOUIF LIGCS
TBTGQ BDSTL SYKPL PSWTB ZKNLY YDLXR OAHEJ HSWHM
TEDUR OEBTT LNQTA HMTRS YIDJQ CEGNZ YITUJ FCJGG
VUHPZ VUIIF LSWPP WBPGZ LDIWG UGIWY AWPHA VMXCE
CEGNO BIRZJ FTDLY YDIWC TTWTA BRXDS ZSFJG KWTGC
LXIGC TEANA BRXDS ZUCUM YTJCY AEANR OENLC YECIT
LRNVM VDPIK HKXCE JOCCC JTXDL ZIILY ZAKTP FLDCE
DANIM AHXHD PSWXL NGGDS UDQJR MOGHM SISIF LTGXN
DAHJQ BAAAW DEAAU VRIWG ATWTA BRXDS ZSFJG KWTGC
CEGNQ TAAAF HRBAC ZSSXD MIRJJ ATDUG UDPCB YERZM
UESQW JOCCM PSHTS YSIDF HVTIF LFDJJ LSIIY ZTTDD
HNNRP LAIJP LICIF LWDGJ KTWXQ TASTR OEBKC YYBJA
OICSC TACSG UARTP AAXCI PNSDD YEHIY BRPCR DHTGC
OIVWJ FSZXJ SESRF LFHBY KELXR OGGTY ACPGC KIHWC
ZCDCR HICXL NNDIP HCTDD AHTHO BISLF HTHDC CEGHM
SISYY JKHDL ZPGDZ SEBLY ZTWPR AOCXE OTPBM VNATQ
ZNXVF AICIF LSEPU UICVQ LAHDL DHTCR OEHFS PDLTP
LEHEC JIPAJ FCJGG VUHPZ VUITT LRNIF PNVIF LCWTD
ZETBC KTDWY CEQTC UAILM YKDCR OEHTY PTHTJ MTWTP
LWPHL VTPHG UGATG UTTGC ZTTSC FEQPJ STDQC ZETCR
OEGTU LRTCR HNNDR OEGUG ZHTXR OEGPL KUHJY SLNIF
LRTLC YEPUC DAIIP HCITB AOIWC SIVWR OESRY BGWIQ
PGWIM MOCTG AHPSZ LECBY RICVR ORDJE OTWTU HTTGC
ETGTK LLNUY ZTXCY ZTGPG NHIAG UE
\end{minipage}
\end{center}

\pagebreak

\moddocdis{Breaking the Vigenère cipher}{03}{15}{Cipher 7}


\begin{itemize}
\itemb Your task is to decipher the cipher below, that you will find in the  {\tt Partage Profs / Terminale Euro}
folder.
\itemb Go to the website {\tt math.ucsd.edu/$\sim$crypto/java/EARLYCIPHERS/Vigenere.html} and follow the instructions to
break the cipher.
\itemb Once the decryption process is complete, recreate the initial plain text by guessing the punctuation and
paragraphs, then send your final answer to {\tt mickael.vedrine@free.fr}. These answers will be graded.
\end{itemize}

\begin{center}
\begin{minipage}{13.2cm}\tt
PHPCW ESHSW NEESW COODH HAJRS IEDHA PHESW HIGPK
KFXPF KNLMG WROHZ ECSTK WTZYW WNOEZ ASLXW PIXPS
OIXAD APWLQ ENRLJ AALYV PHPHZ KLPHG NLOLF ZFLEW
WLHLQ OWTYK BAEPS HWLJK SIYDE KSEZX PHPRG ZSESJ
KWOTU ABFEX WTPAD WYDNZ ASDLF ZYZFV KNEQA JDZFL
QNETD POZWS PEESS PHPDT AEYFK ENREO KQFPW JSLWD
WLZYY BAEPO ENDLL HELDL OOTEA OCWLA IEOHZ WTPGW
NHLAH ANDEZ AYDLQ WFEPJ SACOK ETXFK PHLGW XEPYX
WTPRG ZSNLF PAVPS JYQZJ IBFEL DEZYW WSAPU POQEZ
AMDPD REDEZ AYNLF JOENZ WNRPA OTSPA NEJPK SHTNZ
OHZHL DETCF WTFCW PHPPQ ASZQX WTPLJ AHLCV HYPJW
OAELD HJFDL ZACVZ KLPDA JTZLF ENQTF ETJDH ACVWW
ZWTEZ SHLEE WYMPK PACDG NTSPJ AARLA JMLJT AOESW
NTSTF CSSPT HIYVW ZTSPE OMTWW ZAESA OFPWD KWAWS
UECDA JTSPK IURHS UWTYF ARDOG FUDET AFZCW PHPJT
ACZXW SIYYW NSLYV OATOA WCNFK ATSPZ EGSAJ EEDEG
BTSPY NEPYJ KBPTF PHPWA XRLCQ SIESL DEOZM XLPSS
JDPOS TELYV DEHZF DEMPS IEOLL PHPXF KOYPD EKPSS
LOZCO ENYPJ CRFXT HEOZX BLPCL DENCG YOOTD AGZOL
DRZFY DHTDX WNRDA PSPPE OTSLL EAXQS ROCTF CMJDW
HFEZV WYDLA ZFLEW WNJZF AFLYU USZXW PHTYY ALDPL
DERZV OSSCM CGPOE WDVTF CSDLA ZFLEW LLPLK WNEWQ
OTLCU NODDW ZLZGW NSTEZ ENVHW REWZK PTSPJ QLPDX
KRESS POYPK WIOMD ENOTG YHTPX KFESW COODG NTPXH
ASEHJ ACVPV IACTF ARDJG QAWHS USHTF OATOA KFWZG
ZSLYV ZRZFY DTDDS EDQLL ATSLL OAYPS OYZYW WSSLV
KWQPD HANCG OSESW CAXTF CTLMD ATSPY KDDWG KKPOM
LASDS EDQLL ALPES CAXPT AGTYK WIOEZ ALLOQ
\end{minipage}
\end{center}

\pagebreak

\moddocdis{Breaking the Vigenère cipher}{03}{15}{Cipher 8}


\begin{itemize}
\itemb Your task is to decipher the cipher below, that you will find in the  {\tt Partage Profs / Terminale Euro}
folder.
\itemb Go to the website {\tt math.ucsd.edu/$\sim$crypto/java/EARLYCIPHERS/Vigenere.html} and follow the instructions to
break the cipher.
\itemb Once the decryption process is complete, recreate the initial plain text by guessing the punctuation and
paragraphs, then send your final answer to {\tt mickael.vedrine@free.fr}. These answers will be graded.
\end{itemize}

\begin{center}
\begin{minipage}{13.2cm}\tt
NZEGB NDQHR REPIG OCBSV SPIRQ TSMIN GWMXU EEWVG
OTAIV SLOVB UYLPV VTVKP RPIXH RPQXV STUTB SDQFY
EEWPV VPVIN RPZXU ERZSH NOEMG HZCXO ETVKH NOMVV
TTBWU OCQDB NDIVR AQMAV NNPIF AHICV TSIWN BZCXN
SRWSQ AECVA OQATR EOIWL OFVIR DEWLH NELSJ NLTIG
TFKIV TSIWF UCDMI EOELV LPBLR RPAXB FPDSY UEQSA
FWWAR DAIWG IEJCO ETVKB NEPIJ HZTIA OEPVR AEBSN
NJWRR AYLXB OXCGU TCWYO LPBSR AEIRQ TSMRG HPZIV
SEPIR ARTIN CCMEG UCMSS TSMEV RLVHU IRPTY ANMWJ
HZAIU OCQDB NDOSN LWBLR WLGXB TSMIQ GPWJG HPESE
LOMCR STOLG KPMRR NZCKU TZATB TEPIE UDBPR OQASZ
EDUEY LLVHF QFMEX YNZIN TFZIU AWNEZ IWMEJ AJIPY
PZEIE AWTGB NEZSY LTOLG NTVKQ ELBLB NHQRT SEIPB
NDIRQ CWIAF EYWYT HEWQN KPIQR AWWJN NJBLV NRAQN
LWMVG HLVMG IDIRQ AETIN SEBEX ELPYE RTMHF NLKOB
UEWJN NJBLV NRJMT GPZEA DJMXG HPMET LPEMY LDQXS
OCPSH RDWRG HPKVN GLVHF UCDIL TSMOV NRLSZ SZNXU
EHWVY DFVXV LTBWC OEAEQ IDBEA TXWZR MPVXN NOBLR
NTBAV LWNSP UDNSP UDNSP UDWRG HPAQN LWALR LWESO
BWQRT AXWRT TSMFH SSMWQ OHVXU ECMSA TSMHR SPZXN
NOQXJ IWTPR AAIRQ AXQRH TPTEG ECBLR TZZXB IDMJV
NOAXU EHWVY DOZSC PTVKN WLGJE OXQXN NOQXF EPAXU
EHWVY DQWVG HPNME SEBMZ EYWPB NRMVB NPQRP HQZSZ
TSMKE OFVHO UENMI ESCRQ RPLJR EEIFB VPQXN NOQXG
HTVOF WSIXN GCMEG FCQIA DTPEI ETVXU EPIKY ELVHG
HPVXU EPIKY EWMXF GZIRQ AWUSF TLTAN YDBLR TZZXB
IDMTY UYOIF TZQXF DPIXU EGMVL OYMOA OHAAU YEPIG
OCBSV SPLSR SEPMF GCIZV TJQWN HLJMG TSIXV SSIVQ
TZALN KPWJS NZWRR KYWAF WSGXU EPIKY EOWIF TSQWG
HPZIF GZWHR AEQRT OYIXB REWMF EMCXP OYAMQ ECQRT
TSMIS FZZXV NGWPI EOBLR RPAQH CSJIG TPZIN TTVKB
NAZEP TTKEY LJIRL TSQRT EWAIV TDAMZ PWGXU EOMPV
GSBSS ELOPR SEWXB RXMRG TZZXB IDMWO UEWJP OFZWR
WSIXG HPMET LPLSR SYWXE ELTMM ETAXU AEQXV SAIVG
INQTN TTVKV NLDIE YNZYQ EQWVZ OQVEG UCIPF EWMGG
IZVSA EOICN TZZXB IDMAV LWTIN RYPSJ TZNPL 
\end{minipage}
\end{center}

\pagebreak

\moddocdis{Breaking the Vigenère cipher}{03}{15}{Cipher 9}


\begin{itemize}
\itemb Your task is to decipher the cipher below, that you will find in the  {\tt Partage Profs / Terminale Euro} folder.
\itemb Go to the website {\tt math.ucsd.edu/$\sim$crypto/java/EARLYCIPHERS/Vigenere.html} and follow the instructions to break the cipher.
\itemb Once the decryption process is complete, recreate the initial plain text by guessing the punctuation and paragraphs, then send your final answer to {\tt mickael.vedrine@free.fr}. These answers will be graded.
\end{itemize}

\begin{center}
\begin{minipage}{13.2cm}\tt
IAMWX TCHPU OPUPR UOOTO HDGBR RTVIG HVRIF HVAXL OIHWV TVBLX PACZL 
TOCAK OROLR UWHQQ GRCZO DOVIW AXVQO DXOVW HDBSD NYDWV SDPTB DJWBS 
RVQBL CVZTB YJIER UGRVW CJBAW AIHTB RPBIF RJGAI OGYAW OYOGZ HJQTD 
IHHPD TVQPL LYRWQ TFBWZ AIMBK IIUIF HDZLV BMOQQ SOOZW SAIVF TDCVL 
NBOBE IMHPD NYVIV AHCVJ SOWBV MVBGL NAOVW CJBDR LPHQR NNHPR UNOVG 
SJTLR RHOVW AOCUV IIHWZ HDQPJ OYVIV PPHIP YNHQF PJGAL BDZQW YACZQ 
OOWKL NBOVD DPZBV AXHIQ DAWOX RDBOR UOWBV PPFXR ROIXW OVPWX TDHAS 
RDAIU YNQPR OGRIB SVQPL LYHPL NFGVD TPFIO LTCVO YJTXO ATPCW MVBGD 
FJFUR FKZIB CJBBD IIGLL SXWXO IIOZB FVQBR RTCCF AIHLR TCWAR ROVIW 
PPHAR UOCCW SCCEV AXVQO DOVIW IOACV TOVQQ KKFIF TDQIO 
LTCZI ADZVR WDTBK RJIOK OPHKK IGRPR OYOJU ADBPD SICWS PJGQW IJBQW INDTD
IIHPD TDHEL LGOBW ADBIS ONWBL OICNV TVHCV QPCIV WDHPR UMCZG IIOZB 
AIWUD LNAIQ KICEV NJHEK YVQWZ DJUWU LDCVZ ANBWW BJFVZ IOVIE RVWVR 
NVDIU WDHPR UMGEK YNIKK AIWUD LNQIQ NJHIG DNIJW RVQBR RJPBD
IITZR MWCWN SVBLV CCCWO IIUBK AODIU AHCCQ TKCAL TDCVZ HDQPP AIVWO 
DNHWG ATPCW ACIUD NWFIL NDGVR TDBBK AOQTD SNQWQ SOOVW LTHPU OWPQQ 
GVBLS UGGIW IIUQW RVDQG LTTWU MNCXL NDCVV AOHIL NDBOD NVPQO
IOMWI IOGWZ NVTIF TRVQF HDGAW AMHTL NBZGV HJKVE YVBWF CVGQR NVZKK 
IGRXU OYWOB IIACV IXCZV CCCWO WJFSD NYOAZ IOVWX RYIUE AIWUD LNOKK IGRAL
NVPQO IOMKR NQWVF IIUTB TJWUS AMHQW SOVWX GCHAW OPGAK OPZLQ OOQTD 
SNWBD SDUVR RVBBX PJBBK INPIV INWIP GJWVJ TJGPR WTCCK OROJX NXVWI BMWOK 
TTCCQ GACTN SYWLI IIRIF HVAXL OIOUD NRWBK BJMAD NYUQU LNCNK INCEQ AHOVR 
FNCLR MDBIW IIUIQ DCOXS YDBLL VDRCD LDHGW HVHGR UOVQV DMOEQ TJVQP ANWAD 
FGMBR ANIOD RWCEO IOWAD SOCZB AWCCW ANAIO LOCEQ IOWAQ OOOOR SNWXB 
YVFVQ OMWAL TVRZB MJBWW OICCV AXQWX NOTCO LJTAX CCQCV TJAIU YAWTO IIGIV 
RJAIQ TDQUR OIZQJ HOQIV TDBOP UMYGV HVRWZ SYCEQ AGCVJ WDBLL NBQWX
NOFGU OVRVR RRWTO IOGIB AIMBK IIUIE OPHBL NFZQQ GNZCO LDBOG INHIQ TACTG 
SMCJL NNQIU OGZQQ GVHBZ IGWOK TICZD NTKIU MBZWZ OAZIP PGWOK TAFWP AXOJL
NRWVG ORBWL TDGIQ AXQWX NOCNX PVBLG ODBOD COWDL TTODL VDRXR ROFIB 
AGCNB OPHPD SDHQV TJRIB AIRIS RVQBL CVZLL SXOZG IIUWI TCOBZ OMBWX TICBL OIHPD
TVQPL LYRWQ TFBWZ AIMBK IIU
\end{minipage}
\end{center}

\pagebreak    


\moddoc{Cipher 1 : plain text}

They say that the prospect of being hanged in the morning concentrates a man's mind wonderfully; unfortunately, what the mind inevitably concentrates on is that, in the morning, it will be in a body that is going to be hanged.

The man going to be hanged had been named Moist von Lipwig by doting if unwise parents, but he was not going to embarrass the name, insofar as that was still possible, by being hung under it. To the world in general, and particularly on that bit of it known as the death warrant, he was Alfred Spangler.

And he took a more positive approach to the situation and had concentrated his mind on the prospect of not being hanged in the morning, and, most particularly, on the prospect of removing all the crumbling mortar from around a stone in his cell wall with a spoon. So far the work had taken him five weeks and reduced the spoon to something like a nail file. Fortunately, no one ever came to change the bedding here, or else they would have discovered the world's heaviest mattress.

It was a large and heavy stone that was currently the object of his attentions, and, at some point, a huge staple had been hammered into it as an anchor for manacles.

Moist sat down facing the wall, gripped the iron ring in both hands, braced his legs against the stones on either side, and heaved.

His shoulders caught fire, and a red mist filled his vision, but the block slid out with a faint and inappropriate tinkling noise. Moist managed to ease it away from the hole and peered inside.

At the far end was another block, and the mortar around it looked suspiciously strong and fresh.

Just in front of it was a new spoon. It was shiny.

As he studied it, he heard the clapping behind him. He turned his head, tendons twanging a little riff of agony, and saw several of the wardens watching him through the bars.

\begin{flushright}
From {\sl Going Postal}, by Terry Pratchett
\end{flushright}

Keyword : LUCKY

\pagebreak



\moddoc{Cipher 2 : plain text}

Some of the things you could learn up a drainpipe at night were surprising. For example, people paid attention to small sounds--the click of a window catch, the clink of a lock pick--more than they did to big sounds, like a brick falling into the street or even (for this was, after all, Ankh-Morpork) a scream.

These were loud sounds, which were, therefore, public sounds, which, in turn, meant they were everyone's problem and, therefore, not mine. But small sounds were nearby and suggested such things as stealth betrayed, and were, therefore, pressing and personal.

Therefore, he tried not to make little noises.

Below him, the coach yard of the Central Post Office buzzed like an overturned hive. They'd got the turntable working really well now. The overnight coaches were arriving and the new Überwald Flyer was gleaming in the lamplight. Everything was going right, which was, to the nighttime climber, why everything was going wrong.

The climber thrust a brick key into soft mortar, shifted his weight, moved his foo--

Damn pigeon! It flew up in panic, his other foot slipped, his fingers lost their grip on the drainpipe, and when the world had stopped churning, he was owing the postponement of his meeting with the distant cobbles to his hold on a brick key, which was, let's face it, nothing more than a long, flat nail with a T-piece grip.

And you can't bluff a wall, he thought. If you swing, you might get your hand and foot on the pipe, or the key might come out. 

\begin{flushright}
From {\sl Making Money}, by Terry Pratchett
\end{flushright}

Keyword : PARANO


\pagebreak


\moddoc{Cipher 3 : plain text}

Sam Vimes sighed when he heard the scream, but he finished shaving before he did anything about it.

Then he put his jacket on and strolled out into the wonderful late spring morning. Birds sang in the trees, bees buzzed in the blossom. The sky was hazy though, and thunderheads on the horizon threatened rain later. But for now, the air was hot and heavy. And in the old cesspit behind the gardener's shed, a young man was treading water.

Well ... treading, anyway.

Vimes stood back a little way and lit a cigar. It probably wouldn't be a good idea to employ a naked flame any nearer to the pit. The fall from the shed roof had broken the crust.

``Good morning!" he said cheerfully.

``Good morning, Your Grace," said the industrious treadler.

The voice was higher pitched that Vimes expected and he realized that, most unusually, the young man in the pit was in fact a young woman. It wasn't entirely unexpected -- the Assassins' Guild was aware that women were at least equal to their brothers when it came to inventive killing -- but it nevertheless changed the situation somewhat.

``I don't believe we've met?" said Vimes. "Although I see you know who I am. You are ... ?"

``Wiggs, sir," said the swimmer. "Jocasta Wiggs. Honored to meet you, Your Grace."

``Wiggs, eh?" said Vimes. "Famous family in the Guild. 'Sir' will do, by the way. I think I once broke your father's leg?"

\begin{flushright}
From {\sl Nightwatch}, by Terry Pratchett
\end{flushright}

Keyword : AIRBAG


\pagebreak



\moddoc{Cipher 4 : plain text}

Everything starts somewhere, although many physicists disagree.

But people have always been dimly aware of the problem with the start of things. They wonder aloud how the snowplow driver gets to work, or how the makers of dictionaries look up the spelling of the words. Yet there is the constant desire to find some point in the twisting, knotting, raveling nets of space-time on which a metaphorical finger can be put to indicate that here, here, is the point where it all began ...

Something began when the Guild of Assassins enrolled Mister Teatime, who saw things differently from other people, and one of the ways that he saw things differently from other people was in seeing other people as things (later, Lord Downey of the Guild said, "We took pity on him because he'd lost both parents at an early age. I think that, on reflection, we should have wondered a bit more about that").

But it was much earlier even than that when most people forgot that the very oldest stories are, sooner or later, about blood. Later on they took the blood out to make the stories more acceptable to children, or at least to the people who had to read them to children rather than the children themselves (who, on the whole, are quite keen on blood provided it's being shed by the deserving*), and then wondered where the stories went.

And earlier still when something in the darkness of the deepest caves and gloomiest forests thought: what are they, these creatures? I will observe them ...

\begin{flushright}
From {\sl Hogfather}, by Terry Pratchett
\end{flushright}

Keyword : MUSIC


\pagebreak

\moddoc{Cipher 5 : plain text}

Against the stars a turtle passes, carrying four elephants on its shell.

Both turtle and elephants are bigger than people might expect, but out between the stars the difference between huge and tiny is, comparatively speaking, very small.

But this turtle and these elephants are, by turtle and elephant standards, big. They carry the Discworld, with its vast lands, cloudscapes, and oceans.

People don't live on the Disc any more than, in less hand-crafted parts of the multiverse, they live on balls. Oh, planets may be the place where their body eats its tea, but they live elsewhere, in worlds of their own which orbit very handily around the center of their heads.

When gods get together they tell the story of one particular planet whose inhabitants watched, with mild interest, huge continent-wrecking slabs of ice slap into another world which was in astronomical terms, right next door--and then did nothing about it because that sort of thing only happens in Outer Space. An intelligent species would at least have found someone to complain to. Anyway, no one seriously believes in that story, because a race quite that stupid would never even have discovered slood.*

People believe in all sorts of other things, though. For example, there are some people who have a legend that the whole universe is carried in a leather bag by an old man.

They're right, too.

Other people say: hold on, if he's carrying the entire universe in a sack, right, that means he's carrying himself and the sack inside the sack, because the universe contains everything. Including him. And the sack, of course. Which contains him and the sack already. As it were.

To which the reply is: well?

All tribal myths are true, for a given value of "true."

\begin{flushright}
From {\sl The Last Continent}, by Terry Pratchett
\end{flushright}

Keyword : FITTER


\pagebreak



\moddoc{Cipher 6 : plain text}

It was a moonless night, which was good for the purposes of Solid Jackson.

He fished for Curious Squid, so called because, as well as being squid, they were curious. That is to say, their curiosity was the curious thing about them.

Shortly after they got curious about the, lantern that Solid had hung over the stern of his boat, they started to become curious about the way in which various of their number suddenly van-ished skyward with a splash.

Some of them even became curious--very briefly curious--about the sharp barbed thing that was coming very quickly toward them.

The Curious Squid were extremely curious. Unfortunately, they weren't very good at making connections.

It was a very long way to this fishing ground, but for Solid the trip was usually well worth it. The Curious Squid were very small, harmless, difficult to find and reckoned by connoisseurs to have the foulest taste of any creature in the world. This made them very much in demand in a certain kind of restaurant where highly skilled chefs made, with great care, dishes containing no trace of the squid whatsoever.

Solid Jackson's problem was that tonight, a moonless night in the spawning season, when the squid were especially curious about everything, the chef seemed to have been at work on the sea itself.

There was not a single interested eyeball to be seen. There weren't any other fish either, and usually there were a few attracted to the light. He'd caught sight of one. It had been making through the water extremely fast in a straight line.

\begin{flushright}
From {\sl Jingo}, by Terry Pratchett
\end{flushright}

Keyword : HAPPY


\pagebreak

\moddoc{Cipher 7 : plain text}

There is where the gods play games with the lives of men, on a board which is at one and the same time a simple playing area and the whole world.

And Fate always wins.

Fate always wins. Most of the gods throw dice but Fate plays chess, and you don't find out until too late that he's been using two queens all along.

Fate wins. At least, so it is claimed. Whatever happens, they say afterwards, it must have been Fate.*

Gods can take any form, but the one aspect of themselves they cannot change is their eyes, which show their nature. The eyes of Fate are hardly eyes at all -- just dark holes into an infinity speckled with what may be stars or, there again, may be other things.

He blinked them, smiled at his fellow players in the smug way winners do just before they become winners, and said:

"I accuse the High Priest of the Green Robe in the library with the double-handed axe."

And he won.

He beamed at them.

"No one likeh a poor winner," grumbled Offler the Crocodile God, through his fangs.

"It seems that I am favoring myself today," said Fate. "Anyone fancy something else?"

The gods shrugged.

"Mad Kings?" said Fate pleasantly. "Star-Crossed Lovers?"

"I think we've lost the rules for that one," said Blind Io, chief of the gods.

"Or Tempest-Wrecked Mariners?"

"You always win," said Io.

"Floods and Droughts?" said Fate. "That's an easy one."

A shadow fell across the gaming table. The gods looked up.

"Ah," said Fate.

"Let a game begin," said the Lady.

\begin{flushright}
From {\sl Interesting time}, by Terry Pratchett
\end{flushright}

Keyword : WALLS


\pagebreak

\moddoc{Cipher 8 : plain text}

Now consider the tortoise and the eagle.

The tortoise is a ground-living creature. It is impossible to live nearer the ground without being under it. Its horizons are a few inches away. It has about as good a turn of speed as you need to hunt down a lettuce. It has survived while the rest of evolution flowed past it by being, on the whole, no threat to anyone and too much trouble to eat.

And then there is the eagle. A creature of the air and high places, whose horizons go all the way to the edge of the world. Eyesight keen enough to spot the rustle of some small and squeaky creature half a mile away. All power, all control. Lightning death on wings. Talons and claws enough to make a meal of anything smaller than it is and at least take a hurried snack out of anything bigger.

And yet the eagle will sit for hours on the crag and survey the kingdoms of the world until it spots a distant movement and then it will focus, focus, focus on the small shell wobbling among the bushes down there on the desert. And it will leap . . .

And a minute later the tortoise finds the world dropping away from it. And it sees the world for the first time, no longer one inch from the ground but five hundred feet above it, and it thinks: what a great friend I have in the eagle.

And then the eagle lets go.

And almost always the tortoise plunges to its death. Everyone knows why the tortoise does this. Gravity is a habit that is hard to shake off. No one knows why the eagle does this. There's good eating on a tortoise but, considering the effort involved, there's much better eating on practically anything else. It's simply the delight of eagles to torment tortoises.

But of course, what the eagle does not realize is that it is participating in a very crude form of natural selection.

One day a tortoise will learn how to fly. 

\begin{flushright}
From {\sl Small Gods}, by Terry Pratchett
\end{flushright}

Keyword : ALIEN


\pagebreak

\moddoc{Cipher 9 : plain text}

If Youth, throughout all history, had had a champion to stand up for it; to show a doubting world that a child can think; and, possibly, do it practically, you wouldn't constantly run across folks today who claim that "a child don't know anything." A child's brain starts functioning at birth; and has, amongst its many infant convolutions, thousands of dormant atoms, into which God has put a mystic possibility for noticing an adult's act, and figuring out its purport.

Up to about its primary school days a child thinks, naturally, only of play. But many a form of play contains disciplinary factor. "You can't do this," or "that puts out out," shows a child that it must think, practically, or fail. Now, if, throughout childhood, a brain has no opposition, it is plain that it will attain a position of "status quo," as with our ordinary animals. Man knows not why a cow, dog, or lion was not born with a brain on a par with ours; why such animals cannot add, subtract, or obtain from books and schooling, that paramount position which Man Holds today.

But a human brain is not in that class. Constantly throbbing and pulsating, it rapidly forms opinions; attaining an ability of its own; a fact which is startlingly shown by an occasional child "prodigy" in music or school work. And as, with our dumb animals, a child's inability convincingly to impart its thoughts to us, should not class it as ignorant.

Upon this basis I am going to show you how a bunch of bright young folks did find a champion; a man with boys and girls of his own; a man of so dominating and happy individuality that Youth is drawn to him as is a fly to a sugar bowl. It is a story about a small town. It is not a gossipy yarn; nor is it a dry, monotonous account, full of such customary "fill-ins" as "romantic moonlight casting murky shadows down a long, winding country road." Nor will it say anything about tinklings lulling distant folds; robins carolling at twilight, nor any "warm glow of lamplight" from a cabin window. No. It is an account of up-and-doing activity; a vivid portrayal of Youth as it is today; and a practical discarding of that worn-out notion that "a child don't know anything."


\begin{flushright}
From {\sl Gadsby}, by Ernest Vincent Wright
\end{flushright}

Keyword : AVOID


\pagebreak

\end{document}
