using System;

using System.Collections.Generic;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        List<string> ToList = new List<string>();

        List<string> CcList = new List<string>();

        List<string> BccList = new List<string>();

​

        ToList.Add("Laura Smith");

        ToList.Add("Laura Smith");

        ToList.Add("Laura Smith");

        foreach(var i in ToList)

            Console.WriteLine(i);

        Console.WriteLine("-----------");

        ToList = ToList.Distinct().ToList();

        foreach(var i in ToList)

            Console.WriteLine(i);

    }

}