MatchFullName-regex

using System;
using System.Text.RegularExpressions;

namespace text
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            var regex =new Regex(@"\b[A-Z][a-z]+ [A-Z][a-z]+\b");
            var text = Console.ReadLine();
            var matches = regex.Matches(text);
            Console.WriteLine(string.Join(" ",matches));
        }
    }
}