using System;   

public class Program

{

    public static void CallBackTest( Action<(string Name, int Age)> fn)

    {

        fn(("MhamzaRajput", 23));

    }

    public static void Main()

    {

        CallBackTest((t) =>

        {

            var ( Name, Age ) = t;

            Console.WriteLine(t.Name);

            Console.WriteLine(t.Age);

        });

    }

}