#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pair pair<int,int>
#define endl '\n'
#define N (int)2e5+7
#define INF 0x3f3f3f3f//����� INT_MAX ����С INT_MIN
void solve()
{
    double a,b;
    cin>>a>>b;
    while(fabs(a-b)>1e-4)
    {
        if(a>b)
        {
            a*=0.5;
            cout<<1;
        }
        else 
        {
            a=0.5*(a+1);
            cout<<2;
        }
    }
}
int main()
{
    std::ios::sync_with_stdio(false);
    cin.tie(0),cout.tie(0);
    int t=1;
    // cin>>t;
    while(t--)
        solve();
    return 0;
}