#include <iostream>

using namespace std;

class Proof {
public:
    Proof() {
       cout << "instance created\n";
    }

    Proof(Proof & p) {
       cout << "copy-cnstr\n";
    }

    Proof(Proof && p) {
       cout << "move-cnstr\n";
    }
};

int main() {
    auto kek = Proof();
    return 0;
}