using System;

public class Program

{

    public static void Main()

    {

        string strB = "Hello Codebuns.com";

​

        // 1 - Method Signature: int LastIndexOf(string value);

        Console.WriteLine(strB.LastIndexOf(".com")); // 14

​

        Console.WriteLine("\n\n-------------------Separator---------------------\n\n");

        // 2 - Method Signature: int LastIndexOf(char value);

        Console.WriteLine(strB.LastIndexOf('o')); // 16

​

        Console.WriteLine("\n\n-------------------Separator---------------------\n\n");

        // 3 - Method Signature: int LastIndexOf (char value, int startIndex);

        Console.WriteLine(strB.LastIndexOf('e', 14)); // 9

​

        Console.WriteLine("\n\n-------------------Separator---------------------\n\n");

        // 4 - Method Signature: int LastIndexOf(string value, int startIndex);

        Console.WriteLine(strB.LastIndexOf("Code", 12)); // 6

    }

}