#include <stdio.h>

int main(int argc,char**argv)
{	
	if(argc!=2){printf("%s <dig>\n",argv[0]);exit(1);}
	int p=atoi(argv[1]);
	for(printf("%d is binary -> ",p);p;p>>=1)
		printf("%d",p%2?1:0);	
	return printf("\n");
}