题解 | #字符串加解密#

def on(i):#加密函数
    if i.isalpha():
        if i == 'z':
            return 'A'
        elif i == 'Z':
            return 'a'
        elif i.isupper() :
            j=chr(ord(i)+1).lower()
            return j
        elif i.islower() :
            j=chr(ord(i)+1).upper()
            return j
    elif i.isdigit():
        if int(i) == 9:
            return 0
        else :
            j=int(i)+1
            return j
    else:
        return i
def off(i):#解密函数
    if i.isalpha():
        if i == 'A':
            return 'z'
        elif i == 'a':
            return 'Z'
        elif i.isupper() :
            j=chr(ord(i)-1).lower()
            return j
        elif i.islower() :
            j=chr(ord(i)-1).upper()
            return j
    elif i.isdigit():
        if int(i) == 0:
            return 9
        else:
            j=int(i)-1
            return j
    else:
        return i
while True:
    try:
        before=str(input())
        after=str(input())
        res_1=''
        res_2=''
        for i in before:
            j=on(i)
            res_1=res_1+str(j)
        for i in after:
            j=off(i)
            res_2=res_2+str(j)
        print(res_1)
        print(res_2)
    except:
        break