using System;

public class Program

{

    public static void Main()

    {

        string a = "Ferad Hasanov Zyulkyarov";

        string a2 = AnonymizeNames(a);

        Console.WriteLine(a2);

        string b = "123456A";

        string b2 = AnonymizeId(b);

        Console.WriteLine(b2);

    }

    protected static string AnonymizeNames(string fullName)

        {

            string result;

            int nonAnonymizedLength = 14;

            if (fullName.Length <= nonAnonymizedLength)

            {

                result = fullName;

            }

            else

            {

                result = fullName.Substring(0, nonAnonymizedLength);

                int numAsterix = fullName.Length - nonAnonymizedLength;

                string asterixs = new string('*', numAsterix);

                result += asterixs;

            }

            return result;

        }

​

        protected static string AnonymizeId(string id)

        {

            string result;

            int nonAnonymizedLength = 5;

            if (id.Length <= nonAnonymizedLength + 1)

            {

                result = id;

            }

            else

            {

                result = id.Substring(0, nonAnonymizedLength);

                char lastCharacter = id[id.Length - 1];

                int numAsterix = id.Length - nonAnonymizedLength - 1;

                string asterixs = new string('*', numAsterix);

                result += asterixs + lastCharacter;

            }

            return result;

        }

}