#include <iostream>
using namespace std;

struct Yoba1 {
	int i;
};

struct Yoba2 {
	int i;
	int& j = i;
};

int main() {
	std::cout << sizeof(int*) << std::endl;
	std::cout << sizeof(Yoba1) << std::endl;
	std::cout << sizeof(Yoba2) << std::endl;
	return 0;
}