using System;

​

public class shapes

{

    public int l,b,h,r;

    public void box()

    {    

        l=10;b=20;h=30;

        Console.WriteLine(l*b*h+" :volume of box");

    }

    public void sphere()

    {

        r=10;

​

     Console.WriteLine(1.33*3.14*r*r*r+" :volume of sphere");

    }

        public void cylinder()

    {

        r=20;h=10;

     Console.WriteLine(3.14*r*r*h+" :volume of cylinder");

    }

}

public class program

{

    public static void  Main()

    {

        shapes s=new shapes();

        s.box();

        s.sphere();

        s.cylinder();

    }

}