using System;

using System.Collections.Generic;

public class A{

    public A(){

        Console.WriteLine("A");

    }

     static A(){

        Console.WriteLine("Static A ");

    }

}

​

public class B:A{

    public B(){

        Console.WriteLine("B");

    }

     static B(){

        Console.WriteLine("Static B ");

    }

    public void PrintMax(){

        int max=0;

    List<int> lst=new List<int>{2,5,6,8,9,56,48,59,2,112};

        for(int i=0;i<lst.Count;i++){

                    if(i==0){ max=lst[0]; }

                if(lst[i]>max)max=lst[i];

            }

        foreach(var i in lst){

        max=i;

        }

         Console.WriteLine(max);

    }

    public void swap(){

        int a=4,b=6;Console.WriteLine("before " +a + " "+b);

        a=a+b;

        b=a-b;

        a=a-b;

        Console.WriteLine("after " +a + " "+b);

}

}

​

class Program

{

    static void Main()

    {

        B newOBJ=new B();

        newOBJ.swap();

    }

}