02. Match Phone Number

using System;
using System.Linq;
using System.Text.RegularExpressions;

namespace MatchPhoneNumber
{
    internal class Program
    {
        static void Main(string[] args)
        {
            string numbers = Console.ReadLine();

            Regex pattern = new Regex(@" ?\+359([- ])2(\1)\d{3}(\1)\d{4}\b");

            MatchCollection matchedNumbers = pattern.Matches(numbers);

            Console.Write(string.Join(", ", matchedNumbers.Select(x => x.Value.Trim())));
        }
    }
}