poj1298

简单题

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
using namespace std;

#define maxl 300

char decipher(char a)
{
    if (!isupper(a))
        return a;
    return (a - 'A' + (26 - 5)) % 26 + 'A';
}

int main()
{
    //freopen("t.txt", "r", stdin);
    while (1)
    {
        char st[maxl];
        gets(st);
        if (st[0] == 'E')
            break;
        gets(st);
        int len = strlen(st);
        for (int i = 0; i < len; i++)
            putchar(decipher(st[i]));
        putchar('\n');
        gets(st);
    }
}