using System;

public class program {

    static void Swap(ref int a,

                ref int b, ref int c)

    {

        int temp = b;

        b = a;

        a = c;

        c = temp;

    }

    // Driver code

    public static void Main()

    {

         Console.WriteLine("Enter number a: ");

        int a = Convert.ToInt32(Console.ReadLine());

         Console.WriteLine("Enter number b: ");

        int b = Convert.ToInt32(Console.ReadLine());

         Console.WriteLine("Enter number c: ");

        int c = Convert.ToInt32(Console.ReadLine());

​

        Console.Write("Value before swapping:\n");

        Console.Write("a = " + a + "\n"+ "b = " +

                    b + "\n" + "c = " + c + "\n");

        Swap(ref a, ref b, ref c);

        Console.Write("Value after swapping:\n");

        Console.Write("a = " + a + "\n"+ "b = " +

                b + "\n" + "c = " + c + "\n");

    }

}

​

​