#include <iostream>
using namespace std;

enum class Q{ Q1, Q2};

const char* test(const Q value){
	switch(value){
            case Q::Q1: return "z";
            case Q::Q2: return "y";
    }
}

int main() {
	// your code goes here
	cout<<"phase1"<<endl;
	cout<<test(Q::Q1)<<"!"<<endl;
	cout<<"phase2"<<endl;
	cout<<test((Q)3)<<"!"<<endl;
	cout<<"oops";
	return 0;
}