ASCII.1.2

def kek(a):
    if "a" <= a <= "z":
        if ord(a)-3 < 97:
            h = ord(a)-97
            return chr(122+h-2)
        else:
            return chr((ord(a)-3))
    else:
        if ord(a) - 3 < 65:
            h = ord(a) - 65
            return chr(90 +h - 2)
        else:
            return chr((ord(a) - 3))
a= input()
for  i in range(len(a)):
    print(kek(a[i]),end="")