while(1):
    try:
        s = input()
        l = len(s)
        for i in s:
            if (i.isalpha()):
                if (i == 'z'):
                    print('a', end='')
                elif (i == 'Z'):
                    print('A', end='')
                else:
                    print(chr(ord(i) + 1), end='')
            else:
                print(i, end='')
        print()
    except:
        break