using System;

public class MathStuff

{

  static int Square(int a)

  {

    int square = a * a;

    Console.WriteLine("Called Square(int a)");

    return square;

  }

​

  static double Square(double b)

  {

    double square = b * b;

    Console.WriteLine("Called Square(double b)");

    return square;

  }

  public static void Main()

  {

    Console.Write("Square of 9 is {0}", Square(b: 9));

  }

}