#include <stdio.h>
#include <time.h>

int main(int argc, char *argv[])
{
    int failout;
    
    struct tm fails;

    fails.tm_sec = 0;
    fails.tm_min = 0;
    fails.tm_hour = 0;
    fails.tm_hour = 0;
    fails.tm_isdst = -1;

    fails.tm_year = 69;
    fails.tm_mon = 11;
    fails.tm_mday = 30;

    failout = mktime(&fails);
    printf("The system thinks 11/30/1969 is a timestamp of %d \n", failout);
    
    return 0;
}