Two variables are given. Swapping the values of two variables. Displaying the values of variables before and after the permutation.

Swapping values

namespace MyCode
{
    internal class Program
    {
        static void Main(string[] args)
        {
            string name = "Holmes";
            string surname = "Sherlock";
            string changer;

            Console.WriteLine($"{name} {surname}");

            changer = name;
            name = surname;
            surname = changer;

            Console.WriteLine($"{name} {surname}");
        }
    }
}