using System;

public class Program

{

    public static void Main(int a)

    {

      Console.WriteLine("\n enter the value:");

        a =int.Parse(Console.ReadLine());

        Console.WriteLine("area of a square" + (a * a));

    }

    public void area(int l,int b)

    {

        Console.WriteLine("\n enter the vale:");

        l =int.Parse(Console.ReadLine());

        b =int.Parse(Console.ReadLine());

        Console.WriteLine("area of rectangle" + (l * b));

    }

    public void area (int r,double pi)

    {

        Console.WriteLine("\n enter the valiue:");

        r =int.Parse(Console.ReadLine());

        Console.WriteLine("area of circle" + ( pi * r * r));

    }

}

class egoverload

{

    overload s= new overload();

    Console.WriteLine("\n area of square,rectangle,circle:");

    s.area (7,8);

    s.area (8,6);

    s.area(4,3.15);

    Console.Readkey();

    }

​