Search object and returns index of last occurrence within offset List in CSharp

using System;// w  w w . ja  v a  2s  .co  m
using System.Collections.Generic;

public class Example
{
    public static void Main()
    {
        List<string> myData = new List<string>();

        myData.Add("A");
        myData.Add("B");
        myData.Add("C");
        myData.Add("D");
        myData.Add("A");

        foreach(string myD in myData)
        {
            Console.WriteLine(myD);
        }

        Console.WriteLine(myData.LastIndexOf("A", 3));

    }
}