using System;

using System.Text.RegularExpressions;

​

namespace root

{

    public class Program

    {

        public static void Main()

        {

            PrintValidation(" Carrier Name");

            PrintValidation("Carrier Name ");

            PrintValidation("Carrier  Name");

            PrintValidation("C");

            PrintValidation("Carrier Name");

            PrintValidation("Carrier Name 2");

        }

        private static void PrintValidation(string text)

        {

            var pattern = @"^(?:\w+\s)*\w+$";

            Console.WriteLine($"{(Regex.Match(text, pattern).Success ? "✅" : "❌")} \"{text}\"");

        }

    }

}

​