$ cat writeup.md…
$ cat writeup.md…
grodno_new_year_2026
**Files provided:** - `Cipher.txt` (310 characters) - the ciphertext to decrypt - `Intercepted_Codes.txt` (860600 characters) - known plaintext for cryptanalysis (Project Gutenberg book "A Farewell to Arms" by Ernest Hemingway)
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$sign in$ grep --similar