#include<bits/stdc++.h>
#include "testlib.h"
using namespace std;

using ll = long long;

// 制約に書かれている定数を宣言
const ll Nmin = 0, Nmax = 18;
const ll Mmin = 0, Mmax = 1<<18;


int main(){
    registerValidation();
    int N = inf.readLong(Nmin, Nmax);
    inf.readSpace();
    int M = inf.readLong(Mmin, Mmax);
    assert(M <= (1<<N));
    inf.readEof();
    return 0;
}