Tracing behavior test

Program.cs

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

namespace ConsoleApp2
{
	class CalendarControl
	{
		private readonly DateTime target;

		public CalendarControl(string targetYear, string targetMonth)
		{
			target = DateTime.ParseExact(targetMonth, "MMM", CultureInfo.CurrentCulture);
		}

		public override string ToString() => $"{target}";
	}

	class Program
	{
		static void Main(string[] args)
		{
			Console.WriteLine(
				string.Join(",", args.Select(arg => new CalendarControl("2018", arg))));
			;
		}
	}
}