#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#define ithBit(n,i)  ((n)>>(i) & 1)

#define toBinary(n) for((i)=31 ; (i)>=0 ; --(i)) printf("%1d",ithBit((n),(i)))

int main( int argc, char *argv[] )
{
	int n,lo,hi;
	if (argc<3)
	{
		printf("usage: %s <low> <hi>\n",argv[0] );
		exit( EXIT_FAILURE);
	}
	lo=atoi(argv[1]); /* assume a valid int */
	hi=atoi(argv[2]); /* assume a valid int */

	for (n=lo ;n<=hi ; ++n)
	{
		int i;
		printf("binary value of %10d: ",n );
		toBinary(n);
		printf("\n");
	}
	return EXIT_SUCCESS;
}