using System;
using System.Text.RegularExpressions;

namespace CSharpExercises.Exercises.Regular_expressions
{
    class CheckPhoneNumberTask
    {
        public static bool CheckPhoneNumber(string phoneNumber)
        {
            Regex regex = new Regex(@"^\+\d{2}\s(\d{3}\-){2}(\d{3})");
            Match match = regex.Match(phoneNumber);

            return match.Success;
        }

        public static void Main()
        {
            Console.WriteLine(CheckPhoneNumber("+48 592-045-990"));    // True
            Console.WriteLine(CheckPhoneNumber("+999 543-000-305"));   // False
            Console.WriteLine(CheckPhoneNumber("00 204-145-722"));     // False
            Console.WriteLine(CheckPhoneNumber("+47 420-053-934"));    // True
        }
    }
}