#include<iostream>
#include<string>
using namespace std;

typedef unsigned long long ll;

int main()
{
	string str = "0";
	ll a, b;
	cin >> a >> b;
	while(b != 1)
	{
		if(a > ((1 << (b - 1))))
		{
			str += '1';
			a = (1 << b) - a;
			continue;
		}
		else
		{
			str += '0';
			--b;
			continue;
		}
	}
	cout << str << endl;
}