using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        List<string> namesTextFile = new List<string>()

        {

            "James Woods",

            "James Woodson",

            "James Woodsmith",

            "Richard Baxter",

            "Rich Baxterson",

            "Stu Grimes",

            "Frank Reynolds",

            "Francesca Reynolds",

            "Steve Palmer",

            "Jessica Smith",

            "Jess Smithers",

            "Jesse Smithson",

            "Amanda Fowler",

            "Ashley Todd",

        };

        Dictionary<string, int> usernameCollection = new Dictionary<string, int>();

        foreach(string name in namesTextFile)

        {

            string username = string.Concat(name.Split().Select(x => x.Length >= 4 ? x.Substring(0, 4) : x));

            if(usernameCollection.ContainsKey(username))

            {

                usernameCollection[username] = usernameCollection[username] + 1;

            }

            else

            {

                usernameCollection.Add(username, 1);

            }                   

        }

        foreach(var u in usernameCollection)

        {

            for(int i = 0; i < u.Value; i++)

            {

                Console.WriteLine(u.Key + (i > 0 ? i.ToString() : ""));

            }

        }

    }

}