#atbash解密
little=[chr(x) for  x in range(ord("a"),ord("z")+1)]
big=[chr(x) for  x in range(ord("A"),ord("Z")+1)]
str="youaregood!"
result=""
for char in str:
    if char.islower():
        result+=little[::-1][little.index(char)+1]
    elif char.isupper():
        result += big[::-1][big.index(char)]
    else:
        result+=char
print(result)