#include <iostream>
#include <fstream>
#include <cmath>

using namespace std;

int main()
{
    ifstream in("DATA5.txt");
    ofstream out("OUT5.txt");

    for(int i = 0; i < 5; i++)
    {
        int n,k;
        in >> n;
        in >> k;

        if(pow(2.0,n) - 1 == k % (int)(pow(2.0,n)))
            out << "ON" << endl;
        else
            out << "OFF" << endl;
    }

    return 0;
}