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

void main(void)
{
	double  di,dj,dk=0; 
	double duration ;
	clock_t start, end;

	printf("starting C program ....\n");
	start = clock();

        for (di=1; di<=10000 ; di++)
		for (dj=1; dj<=10000 ; dj++) 
			dk=di*dj;

	end = clock();
	duration = (double) (end-start)/CLOCKS_PER_SEC ;
		printf("Time for 1E8 double multiplies: %f secs\n", duration);

}