#include <iostream>
using namespace std;

struct Beta_ab { int a; };

struct Beta {
  Beta_ab ab;
  //Beta_ab && getAB() && { cout << "1"; return move(ab); }
  Beta_ab && getAB() { cout << "2"; return move(ab); }
};

int main() {
	Beta b;
	Beta_ab ab = b.getAB();
	
	//Beta_ab ab = Beta().getAB();

	return 0;
}