#include <cstdlib>
#include <iostream>
#include <fstream>
using namespace std;
int main(int argc, char *argv[])
{
    ifstream fin("DATA5.txt",ifstream::in);
    freopen("OUT5.txt","w",stdout);
    for(int t=5;t--;){
            int a,b;fin>>a>>b;
            int x = (1<<a)-a;
            puts(((b&x)==x)?"ON":"OFF");
            
            
            }
    
    
    return EXIT_SUCCESS;
}