#include<bits/stdc++.h>

using namespace std;
typedef long long ll;
const int N=1000010;

double s=0.5;
bool st[1000];

void solve()
{
	double a,b;
	cin>>a>>b;
	ll cnt=10;
	while(cnt--)
	{
		a/=2;
		cout<<"1";
	}
	double w=b;
	double now=0.5;
	ll ed=0x3f3f3f3f;
	for(ll i=1;i<=30;i++)
	{
		if(b>=now)
		{
			ed=min(ed,i);
			b-=now;
			st[i]=1;
		}
		now/=2;
	}
	for(ll i=30;i>=1;i--)
	{
		if(!st[i])
		{
			cout<<"1";
		}
		else
		{
			cout<<"2";
		}
	}
	cout<<"\n";
}

int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	ll T=1;
	while(T--)
	{
		solve();
	}
	return 0;
}