#include <iostream>
#include <vector>
 
using namespace std;
 
struct GetValue{
private:
	int beta;
 
public:
	GetValue(int beta){
		this->beta = beta;
	}
	int operator()(void){
		return beta;
	}
};
 
class Base{
public:
	int i;
	GetValue getValue;
 
	Base(int i, int j):getValue(j){
		this->i = i;
	}
};
 
int main() {
	const int N = 5;
	vector<Base*> bases;
 
	for(int i=0; i<5; i++){
		bases.emplace_back(new Base(i, i*i));
	}
	for(Base* base: bases){
		cout << base->getValue() << endl;
		//cout << base->getValue.beta << endl;//NG//‘int GetValue::beta’ is private within this context
	}
	return 0;
}

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