namespace _15._3
{
    internal class Program
    {
        static void Main(string[] args)
        {
            const string s4 = "    ";
            int nYear = DateTime.Today.Year;
            int nMonth = DateTime.Today.Month;
            DateTime d1 = new DateTime(nYear, nMonth, 1);
            Console.WriteLine("{0}/{1}", d1.Year, d1.Month);
            Console.WriteLine("SUN MON TUE WED THU FRI SAT");
            int iWeek = (int)d1.DayOfWeek;
            int iLastDay = d1.AddMonths(1).AddDays(-1).Day;
            for (int i = 0; i < iWeek; i++)
            {
                Console.Write(s4);
            }
            for (int i = 1; i <= iLastDay; i++)
            {
                Console.Write(" {0:00} ", i);
                if ((i + iWeek) % 7 == 0) Console.WriteLine();
            }
        }
    }
}