#include <unistd.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <stdio.h>

int main(void){
    if(setpriority(PRIO_PGRP, 0, 0)){
        printf("FAIL\n");
        return 1;
    }
    if(setpriority(PRIO_PGRP, getpgrp(), 0)){
        printf("FAIL\n");
        return 1;
    }
    printf("OK\n");
    return 0;
}