#include <bits/stdc++.h>

using namespace std;

#define ll long long

#define double long double

const double eps = 1e-4;

double s = 0.5,a,b;

int main(){
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	cin >> a >> b;

	for (int i = 1;i <= 25;i++){
		cout << 1;
	}

	vector<int> idx(25);
	double tmp = b;
	double p = 0.5;
	for (int i = 0;i < 25;i++){
		if (tmp >= p){
			tmp -= p;
			idx[i] = 1;
		}else
			idx[i] = 0;
		p /= 2;
	}

	reverse(idx.begin(),idx.end());

	for (auto x : idx){
		if (x == 0) cout << 1;
		else
			cout << 2;
	}


	return 0;
}