// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002112/string-extractuint32

​

// @nuget: Z.ExtensionMethods

​

using System;

using System.IO;

​

public class Program

{   

    public static void Main()

    {   

        string [] input = {"No. 923512539", "abc-15384668"};

​

        foreach(var val in input)

        {

            //C# Extension Method: String - ExtractUInt32

            var output = val.ExtractUInt32();

            Console.WriteLine(output);

        }

    }

}