#undef NDEBUG

#include <iostream>
#include <string>

using namespace std;

int main(int argc, char **argv) {
	int x = 1;
	cout << "x: " << x << endl;
	x = 2;
	cout << "x: " << x << endl;
	x = 3;
	cout << "x: " << x << endl;
	return 0;
}