using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        var long1 = "-10";

        var long2 = "asdkf";

        var long3 = "asdfsdf";

        long.TryParse(long1, out long long1Parsed); // parses correctly

        long.TryParse(long2, out long long2Parsed); // handles error, returns 0

        var long3Parsed = long.Parse(long3); // throws exception

        Console.WriteLine(long1Parsed);

        Console.WriteLine(long2Parsed);

        Console.WriteLine(long3Parsed);

    }

}