using System;
using System.Linq;
using System.Collections.Generic;
 
public class Test
{
 
 
	public static void Main()
	{
	        DateTime date = new DateTime(2013, 01, 01);
            var days = System.Globalization.CultureInfo.CurrentCulture.Calendar.GetDaysInMonth(2013, 01);
            List<String> monthDates = Enumerable.Range(0, days)
                .Select(i => date.AddDays(i).ToString("MMM d"))
                .ToList();
                foreach(string d in monthDates)
                    Console.WriteLine(d);
	}
}

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