Problem: Decrypt this message. You can find the ciphertext in /problems/caesar_1_4c9d445f770c71bd84ab0d822197a005 on the shell server.
File: THE_FILE
Solution: Opening the file you get picoCTF{zolppfkdqeboryfzlktjxksyyl} and then using the trial and error you find the key is 23 on a caesar cipher. Which give you crossingtherubiconwmanvbbo
Flag: picoCTF{crossingtherubiconwmanvbbo}