#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl "\n"
const int N = 1e6, M = 110, mod = 1e9 + 7, inf = 2e9;
const long long D = 1e12;
typedef pair<int, int> pt;
typedef long long ll;

void solve() {
    double a, b;
    cin >> a >> b;
    while (1) {
        if (abs(b - a) <= 1e-4) break;
        if (a > b) {
            a = 0.5 * a;
            cout << 1;
        }
        if (a < b) {
            a = 0.5 * a + 0.5;
            cout << 2;
        }
    }   
}
signed main() {
    //freopen("title.in", "r", stdin);
    //freopen("std.txt", "w", stdout);
	ios::sync_with_stdio(false);
	cin.tie(0), cout.tie(0);
	int t = 1;
	//cin >> t;
	while (t--) {
		solve();
	}
	return 0;
}