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

int main(){
	unsigned int n;
	char num[1005];
	while(scanf("%d",&n)!=EOF){
		int arc=0;
		while(n>0){
			num[arc++]=n%2+'0';
			n/=2;
		}
		for(int i=arc-1;i>=0;i--){
			printf("%c",num[i]);
		}
		printf("\n");
	}
	return 0;
}