HTML

using System;
using System.Text;

namespace HTML
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            StringBuilder sb = new StringBuilder();
            string title = Console.ReadLine();
            sb.AppendLine("<h1>");
            sb.AppendLine(title);
            sb.AppendLine("</h1>");

            string content = Console.ReadLine();
            sb.AppendLine("<article>");
            sb.AppendLine(content);
            sb.AppendLine("</article>");

            string comment = string.Empty;
            while((comment=Console.ReadLine())!="end of comments")
            {
                sb.AppendLine("<div>");
                sb.AppendLine(comment);
                sb.AppendLine("</div>");
            }

            Console.WriteLine(sb);
        }
      }
    }