//土尔逊Torson 编写于2023/5/03
#define _CRT_SECURE_NO_WARNINGS
#include <cstdio>
#include <vector>
#include <stdlib.h>

using namespace std;

int main() {
	unsigned int n;
	while (scanf("%d",&n)!=EOF) {
		vector<int> binary;
		while (n != 0) {
			binary.push_back(n % 2);
			n /= 2;
		}
		for (int i = binary.size() - 1; i >= 0; --i) {//逆序输出
			printf("%d", binary[i]);
		}
		printf("\n");
	}
	system("pause");
	return EXIT_SUCCESS;
}
// 64 位输出请用 printf("%lld")