// overloading di []

#include <iostream>
using namespace std;

class atype {
	int a[3];
public:
	atype(int i, int j, int k) {
		a[0] = i;
		a[1] = j;
		a[2] = k;
	}
	int operator[](int i) {return a[i];}
};

int main()
{
	atype ob(1,2,3);

	cout << ob[1] << endl; // visualizza 2
	return 0;
}