s = input()
letters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
repl = 'bcdefghijklmnopqrstuvwxyzaBCDEFGHIJKLMNOPQRSTUVWXYZA'
print(''.join([repl[letters.index(ch)] if ch in repl else ch for ch in s])) # z is replaced with a and Z with A
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