Swap two variable without using the third variable

using System;

namespace Swap
{
    class Program
    {
        private static void Main(string[] args)
        {
            int a = 1000;
            int b = 999;
            Console.WriteLine("Before Swap");
            Console.WriteLine("Value of A :{0} ", a);
            Console.WriteLine("Value of B :{0} ", b);
            a = a + b;
            b = a - b;
            a = a - b;
            Console.WriteLine("After Swap");
            Console.WriteLine("Value of A :{0} ", a);
            Console.WriteLine("Value of B :{0} ", b);
            Console.ReadLine();
        }

    }
}
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Deependra Kushwah
Deependra kushwah is a member of the fastest growing bloggers community "betechnical", Author, Youtuber, and hardcore Coder. I love writing code in different languages, I also write blogs on tech tutorials, gadgets review and also post some technical videos on youtube on many topics.

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