#include "stdafx.h" 
#include "math.h" 
#include <iostream> 
using namespace std; 



void f (int n)
{	int* b= new int [n];
int j=0;

	while (n!=0)
	{
		b[j++]=n%2;
		n=n/2;	

	}

	for (int i=j-1; i>=0; i--) cout<<b[i];
  }

	
void main() 
{  int n;

cin>>n;
if (n>0) f(n);

}