using System;

using System.Collections.Generic;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        var regex = new Regex(@"^[a-zA-Z]*[a-zA-Z0-9 '-]+$");

        var testWords = new List<string>() {

            "afile234234"

        };

        foreach(var word in testWords) {

            Console.WriteLine(word + " = " + regex.IsMatch(word));

        }

    }

}