public Form1()
        {
            InitializeComponent();
            Preprocess();
        }

        private void StartGenerate(object sender, EventArgs e)
        {
            listValues.Items.Clear();
            listValues.Items.AddRange(Generate.LName.ToArray());
            lblWynik.Text = Generate.NameGen() + " " + Generate.SurnameGen();
            Console.WriteLine("Generating: " + lblWynik.Text);
        }

        private void AddName(object sender, EventArgs e)
        {
            Generate.LName.Add(NameBox.Text.ToString());
            Console.WriteLine("Adding new name to index: " + NameBox.Text);
            NameBox.Clear();
        }

        private void AddSurname(object sender, EventArgs e)
        {
            Generate.LSurname.Add(SurnameBox.Text.ToString());
            Console.WriteLine("Adding new surname to index: " + SurnameBox.Text);
            SurnameBox.Clear();
        }


        private void Preprocess()
        {
            //This is this problematic printing ot listbox :V
            listValues.Items.AddRange(Generate.LName.ToArray());
        }
    }

    public class Generate
    {
        public static List<string> LName = new List<string>() { "Mariusz", "Janusz", "Bogdan", "Zbigniew" };
        public static List<string> LSurname = new List<string>() { "Stonoga", "Wałęsa", "Białkov", "Wichliński" };

        static Random random = new Random();

        public static string NameGen()
        {
            int NameIndex = random.Next(LName.Count);
            return LName[NameIndex];
        }

        public static string SurnameGen()
        {
            int NameIndex = random.Next(LSurname.Count);
            return LSurname[NameIndex];
        }