#include <iostream>

class pair_int {
	int a, b;
	public:

	pair_int(int x, int y) {
		a = x;
		b = y;
	}

	void print() {
		std::cout << a << " " << b << "\n";
	}
};

class pair_double {
	double a, b;
	public:

	pair_double(double x, double y) {
		a = x;
		b = y;
	}

	void print() {
		std::cout << a << " " << b << "\n";
	}
};

int main()
{
	pair_int p(1, 2);
	p.print();

	pair_double q(1., 2.);
	q.print();
}