#include <iostream>
#include <math.h>

using namespace std;

struct squareData {
	double s;
	double p;
};

squareData Square(double side) {
	squareData a;
	a.s = pow(side, 2);
	a.p = 4 * side;
	return a;
}

void Square(double side, double* s, double* p) {
	cout << "Area: " << s << " Perimeter: " << p << endl;
}

int main() {
	double input;
	cout << "Enter square side: ";
	cin >> input;
	squareData sq1;
	sq1 = Square(input);
	cout << "Area: " << sq1.s << " Perimeter: " << sq1.p << endl;

	Square(input, &sq1.s, &sq1.p);
}