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

#include "myheader.h"

int main()
{
    int t[] = {3, 4, 1, 2, 0}, i;
    for (i = 0; i < sizeof(t) / sizeof(int); ++i)
        printf("%s\n", foo(&t[i]) ? "YES" : "NO");
    return EXIT_SUCCESS;
}