#include <stdio.h>

int main()
{
	int pic;
	int rate;
	double usb;
	int div;

	for ( pic=1; pic<=64 ; pic++ )
	{
		rate = 40000000 / ((pic+1)*16);
		usb = 3000000.0 / (double)rate;

		div = (int)usb;
		if ( usb - (double)div < .01 ) 
			printf( "%d = %d, %.2f\n", pic, rate, usb );
	}
}