#include <stdio.h>
// Colour output
#define red  "\033[1;31m"        /* 1 -> bold ;  31 -> red */
#define green  "\033[1;32m"        /* 1 -> bold ;  32 -> green */
#define none   "\033[0m"        /* to flush the previous property */

int main(void)
{
    char prog_name[50] = "/home/khodzha/prog < in";
    FILE* f = popen(prog_name, "r");
    FILE* file = fopen("out", "r");
    int result = 0, answer;
    fscanf(file, "%i", &answer);
    fscanf(f, "%i", &result);
    if(result == answer)
    {
        printf("%sSuccess%s\n", green, none);
    }
    else
    {
        printf("Should be:\t%i\nWas:\t\t%i\n%sFail%s\n", answer, result, red, none);
    }
    pclose(f);
    fclose(file);
    return 0;
}