//Rextester.Program.Main is the entry point for your code. Don't change it. //Microsoft (R) Visual C# Compiler version 2.9.0.63208 (958f2354) using System; using System.Collections.Generic; using System.Linq; using System.Text.RegularExpressions; namespace Rextester { public class Program { public static void Main(string[] args) { //Your code goes here Console.WriteLine("Hello, world!"); } } }