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