using System;

namespace SampleAppCSharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int happyCount = 0;

            for (DateTime date = DateTime.Parse("2015/1/1"); date <= DateTime.Parse("2015/12/31"); )
            {
                if (date.Month == ((date.Day / 10) + (date.Day % 10)))
                    happyCount++;

                date = date.AddDays(1);
            }

            Console.WriteLine(happyCount);
        }
    }
}