#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <time.h>
#include <errno.h>
#include <sys/time.h>

main(int ac, char **av)
{
	struct tm tm;
	time_t t;
	int yyyy, mm, dd, hr, mn, sc;
	int n;
	char *a;

	memset(&tm, 0, sizeof(tm));
	n = sscanf(av[1], "%d/%d/%d %d:%d:%d", &yyyy, &mm, &dd, &hr, &mn, &sc);
	tm.tm_year = yyyy - 1900;
	tm.tm_mon = mm - 1;
	tm.tm_mday = dd;
	tm.tm_hour = hr;
	tm.tm_min = mn;
	tm.tm_sec = sc;
	t = timegm(&tm);
	printf("%ld\n", (long)t);
}