03.ExtractEmails

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace ExtractEmails
{
    class ExtractEmails
    {
        static void Main()
        {
            string text = Console.ReadLine();
            string pattern = @"([\w.-]+@[\w.-]+)";
            MatchCollection matches = Regex.Matches(text, pattern);
            foreach (var match in matches)
            {
                Console.WriteLine(match);
            }
        }
    }
}