using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        int val;

        Console.WriteLine(int.TryParse("-322",out val));

        /*

            Regex rx = new Regex(@"^-?[0-9]");

​

        // Define a test string.

        string text = "-132a";

​

        // Find matches.

        MatchCollection matches = rx.Matches(text);

​

        // Report the number of matches found.

        Console.WriteLine("{0} matches found in:\n   {1}",

                          matches.Count,

                          text);

                          */

​

    }

}