Cipher of Caesar

Question

How can I return a letter which stay on 120 for example with shift 5. It will be 99 and encrypt like “c”. Then I will write the decipher how can I distinguish from real “c”? Please help :)
https://code.sololearn.com/c7nsB4aeEbjS/?ref=app

Answer 1

Here's a hint: https://stackoverflow.com/questions/227459/ascii-value-of-a-character-in-JUMP_LINK__&&__python__&&__JUMP_LINK