#include <bits/stdc++.h>
		
using namespace std;
		
double a, b;
		
long long power(int a, int b) {
	long long ans = 1;
	for (; b; b >>= 1, a = 1LL * a * a) {
		if (b & 1) {
			ans *= a;
		}
	}
	
	return ans;
}
		
int main(){
	cin.tie(nullptr)->sync_with_stdio(false);
	cin >> a >> b;
	
	for (int i = 0; i <= 50; i++) {
		long long now = power(2, i);
		double c = a / now;
		double d = b - c;
//		cout << c << " " << d << " " << now << "\n";
		if (abs(d) <= 1e-4) {
			string ans = string(i, '1');
			cout << ans << "\n";
			break;
		}
		if (d < 0) {
			continue;
		}
		long long cur = d * now;
		d = 1.0 * cur / now;
		c += d;
//		cerr << c << " " << d << " " << cur << " " << b << "\n";
		if (abs(b - c) <= 1e-4) {
			string ans = string(i, '1');
			for (int j = 0; j < i; j++) {
				if (cur & 1) {
					ans[j]++;
				}
				cur /= 2;
			}
//			reverse(ans.begin(), ans.end());
			cout << ans << "\n";
			break;
		}
	}
	return 0;
}