Csharp Swap two Numbers Bitwise XOR Operation

Code:

using System;
class program
{
    public static void Main()
    {
        int i, k;
        Console.WriteLine("Enter two integers \n");
        i = int.Parse(Console.ReadLine());
        k = int.Parse(Console.ReadLine());
        Console.WriteLine("\n Before swapping i= {0} and k = {1}", i, k);
        i = i ^ k;
        k = i ^ k;
        i = i ^ k;
        Console.WriteLine("\n After swapping i= {0} and k = {1}", i, k);
        Console.ReadLine();
    }
}


Output:

Enter two integers
23
34
Before swapping i= 23 and k = 34
After swapping i= 34 and k = 23


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