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

string get(double x)
{
    if (x == 1) return "1";
    string s;
    int t = 20;
    while (x)
    {
        t --;
        if (!t) break;
        x *= 2;
        if (x >= 1) 
        {
            s += '1';
            x -= 1;
        }
        else s += '0';
    }
    return s;
}

signed main()
{
    double a , b;
    cin >> a >> b;
    string A = get(a);
    string B = get(b);
    // cout << A << '\n' << B << "\n";
    reverse(B.begin(), B.end());
    if (B.size() <= 15)
    {
        int t = 15;
        while (t --)
            cout << "1";
        for (auto x : B)
        {
            if (x == '1') cout << 2;
            else cout << 1;
        }
    }
    else 
    {
        for (auto x : B)
        {
            if (x == '1')
                cout << 2;
            else
                cout << 1;
        }
    }
}