python3解题

def encryption(s1):
    tmp = []
    for i in s1:
        if 'a'<=i<='z':
            if i == 'z':
                tmp.append('A')
            else:
                tmp.append((chr(ord(i)+1)).upper())
        elif 'A'<=i<='Z':
            if i == 'Z':
                tmp.append('a')
            else:
                tmp.append((chr(ord(i)+1)).lower())
        else:
            if int(i) == 9:
                tmp.append(0)
            else:
                tmp.append(int(i)+1)
    for i in tmp:
        print(i,end='')
def decryption(s2):
    tmp = []
    for i in s2:
        if 'a'<=i<='z':
            if i == 'a':
                tmp.append('Z')
            else:
                tmp.append((chr(ord(i)-1)).upper())
        elif 'A'<=i<='Z':
            if i == 'A':
                tmp.append('z')
            else:
                tmp.append((chr(ord(i)-1)).lower())
        else:
            if int(i) == 0:
                tmp.append(9)
            else:
                tmp.append(int(i)-1)
    for i in tmp:
        print(i,end='')
    
s1 = input()
s2 = input()
encryption(s1)
print('')
decryption(s2)