using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        var r = new Regex(@"~ .*\((\d+) ms\) ~");

        var match = r.Match("~ REPORT READY (23434 ms) ~");

        var number = match.Groups[1];

        Console.WriteLine(number);

    }

}