译密码

#define _CRT_SECURE_NO_WARNINGS 1

#include<stdio.h>

int main()

{

char c;

while ((c = getchar()) != '\n')

{

 if ((c >= 'A' && c <= 'Z') || (c <= 'z' && c >= 'a'))

 {

  if ((c >= 'U' && c <= 'Z') || (c >= 'u' && c <= 'z'))  c -= 20;

  else c += 5;

  putchar(c);

 }

}

return 0;

}