/*
        This program shows how to use functions
*/

#include <iostream>

using namespace std;

long Square(int a); // function  prototype

int main()
{
	long a;
	cout << "Input an integer: ";
	cin >> a;

	cout << "Square of " << a << " is " << Square(a) << endl;

	return 0;
}

long Square(int a)   // function definition
{
        return (a*a);
}