#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define L 15

int main(int argc, char *argv[]){

    char *query = getenv("QUERY_STRING");
    char body[L] = " ";

    system("chcp 1251 > nul"); // 1251 - windows-1251, 65001 - utf-8
    strcat(body, "вапвкап ап");
    printf("%s%c%c\n%s", "Content-Type:text/html;charset=utf-8",13,10, body);
    getchar();
    return 0;
}