题解 | 字符串加解密

import sys

s = input()
t = input()

for c in s:
    if c.isalpha():
        if c == 'z':
            print('A', end='')
        elif c == 'Z':
            print('a', end='')
        else:
            print(chr(ord(c)+1).swapcase(), end='')
    elif c.isdigit():
        print(str((int(c)+1)%10), end='')

print()

for c in t:
    if c.isalpha():
        if c == 'a':
            print('Z', end='')
        elif c == 'A':
            print('z', end='')
        else:
            print(chr(ord(c)-1).swapcase(), end='')
    elif c.isdigit():
        print(str((int(c)-1)%10), end='')