题解 | #字符串加解密#

def encryption(s: str): s = s out = '' for i in s: if i.isnumeric(): if int(i) < 9: out += str(int(i) + 1) else: out += str(0) if i.islower(): if i < 'z': out += chr(ord(i.upper()) + 1) else: out += 'A' if i.isupper(): if i < 'Z': out += chr(ord(i.lower()) + 1) else: out += 'a' return out

def decryption(s: str): s = s out = '' for i in s: if i.isnumeric(): if int(i) == 0: out += str(9) else: out += str(int(i) - 1) if i.islower(): if i == 'a': out += 'Z' else: out += chr(ord(i.upper()) - 1) if i.isupper(): if i == 'A': out += 'z' else: out += chr(ord(i.lower()) - 1) return out

encry = input() decry = input() print(encryption(encry)) print(decryption(decry))