#include <iostream>
using namespace std;
int main() {
int code;
cin >> code;
// Write your safe delete + pointer reset logic here
int* faultcode = new int(code);
cout << *faultcode << " ";
delete faultcode;
faultcode = nullptr;
if (faultcode== nullptr){
cout << "OK";
}
else {
cout <<"NOT_OK";
}
return 0;
}