题解 | #简单密码#

import sys

s=input()
L=[]
for i in s:
    if i=='Z':
        i="a"
    elif i.isupper():
        i=i.lower()
        i=chr(ord(i)+1)
    elif i.lower():
        if i in 'abc':
            i=str(2)
        elif i in 'def':
            i=str(3)
        elif i in 'ghi':
            i=str(4)
        elif i in 'jkl':
            i=str(5)
        elif i in 'mno':
            i=str(6)
        elif i in 'pqrs':
            i=str(7)
        elif i in 'tuv':
            i=str(8)
        elif i in 'wxyz':
            i=str(9)    
    L.append(i)
print("".join(L))