Caesar cipher exercise

Question

http://s2.subirimagenes.com/imagen/previo/thump_9807313cifradocesar.png

From the game "Thimbleweed Park".

Answer 1

https://code.sololearn.com/c37l8gtIh9nJ/?ref=app

Answer 2

https://code.sololearn.com/c4273uXNh86f/?ref=app

Answer 3

Encrypt and decrypt with any amount of shift:
https://code.sololearn.com/cJ21MZgfjEBz/?ref=app