#include<bits/stdc++.h>
using namespace std;

int main(){
	unsigned int n;
	while(cin>>n){
		int num[100],index=0;
		while(n!=0){
			num[index]=n%2;
			n=n/2;
			index++;
		}
		for(int i=index-1;i>=0;i--){
			cout<<num[i];
		}
		cout<<endl;
	}
	return 0;
}