#!/usr/bin/env python3

import sys
import string

rawInput = sys.stdin.read()
output = ""

for c in rawInput:
    if c in string.ascii_lowercase:
        letters = string.ascii_lowercase
    elif c in string.ascii_uppercase:
        letters = string.ascii_uppercase
    else:
        output += c
        continue

    i = letters.index(c)
    if i > 12:
        i -= 13
    else:
        i += 13

    output += letters[i]

print(output)