using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        int a=10,b=6;

        Console.WriteLine("Before Swapping a={0},b={1}",a,b);

        a=a+b;

        b=a-b;

        a=a-b;

        Console.WriteLine("After Swapping a={0},b={1}",a,b);

    }

}