def coding(s):
    s = list(s)
    for i in range(len(s)):
        if ord(s[i]) >= ord('a') and ord(s[i]) <= ord('y') or ord(s[i]) >= ord('A') and ord(s[i]) <= ord('Z'):
            s[i] = chr(ord(s[i]) + 1)
        elif s[i] == 'z':
            s[i] = 'a'
        elif s[i] == 'Z':
            s[i] = 'A'
        else:
            s[i] = s[i]
    s = ''.join(s)
    print(s)
while True:
    try:
        s = input()
        coding(s)
    except:
        break