#include <iostream>
using namespace std;

int main() {
    int x;
    cin >> x;

    if(x % 3 == 0) {
        cout << "NEMA OSTATOK" << endl;
    }
    else if(x % 3 == 1) {
        cout << "OSTATOK 1" << endl;
    }
    else {
        cout << "OSTATOK 2" << endl;
    }


    if(x % 4 == 0) {

    }
    else if(x % 4 == 1) {

    }
    else if(x % 4 == 2) {

    }
    else {

    }


    return 0;
}