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


int main(void)
{
	long start = time(NULL);
	while (1) {
		sleep(2000);
		long c = time(NULL);
		long el = c - start;
		long rem = 240*60 - el;
		printf("\rTime Remaining: %3dm %02ds", rem / 60, rem % 60);
		fflush(stdout);
	}	
}