#!/usr/bin/env python3.6

word = input("Введите фразу:\n")
shift = 3  # Сдвиг

encode = "".join([chr(ord(x) + shift) for x in word])
print("\nЗашифровано:\n" + encode + "\n")

decode = "".join([chr(ord(x) - shift) for x in encode])
print("Дешифровано:\n" + decode + "\n")