编写题解 2855: 简单密码

解题思路:

注意事项:

参考代码:

a=input()
b=[' ' for i in range(len(a))]
for i in range(len(a)):
   if a[i]>='A' and a[i]<='Z':
       b[i]=chr((ord(a[i])-ord('A')-5)%26+ord('A'))
   else:
       b[i]=a[i]
print("".join(b))