Vigenere Key:

abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzab
cdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz


Plaintext:

cowardsdiemanytimesbeforetheirdeathsthevaliantnevertasteofdeathbutonceofallthewo
ndersthatiyethavehearditseemstomemoststrangethatmenshouldfearseeingthatdeathanec
essaryendwillcomewhenitwillcomewilliamshakespearejuliuscaesarxxxxxxxxxxxxxxxxxxx
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Ciphertext:

cpydviykqnwlzlhxcvkuyakocshfkuhjgapbdsqioayrfmhzrbpsatvhskjlicrmggccsvgyughqfdwp
pgiwyapjdtkrhwqmwayvnagssfgpwyutmvydffhgqeyxncwqkdntjryqjmmjbdqrwcwkztnyaxrgaogf
ixyhzhoypjwabtgfyrdblhtxkophutmfswxvobiysdynlbyqekwomzyjincldklmnopqrstuvwxyzabc
defghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcde
fghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefg
hijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghi
jklmnopqrstuvwxyzabcdefghijklmno