using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello Merchant Taylors' Croston");

        string x = ("x");

        const string year = ("2017");

        Console.WriteLine("please input your first name and then your second name");

        string N1 = Console.ReadLine();

        string N2 = Console.ReadLine();

        string U1 = (N1.Substring(0,1));

        string U2 = N2.Substring(0,3);

        U1 = U1.ToLower();

        U2 = U2.ToUpper();

        string U = (U1 + U2);

        U = (U + year);

        int Length1 = (N1.Length);

        int Length2 = (N2.Length);

        string Length = Convert.ToString(Length1 + Length2);

        U = (U + Length);

        int LengthU = (U.Length);

        Console.WriteLine(LengthU);

        if ( LengthU >= 10)

        {

            Console.WriteLine(U);

        }

        else if (LengthU < 10)

        {   

            U = (U + x);

            Console.WriteLine(U);

        }

        Console.WriteLine(U);

    }

}