using System;
public class Program
{
    public static void Main()
    {
        int happyDay = 0;

        for (int i = 0; i < 365; i++)
        {
            DateTime addDay = new DateTime(2015, 1, 1).AddDays(i);
            
            if (addDay.Month == addDay.Day) //月と日が同じ
            {
                happyDay++;
                continue;
            }
            else if (addDay.Day >= 10) //day10以上
            {
                string str = addDay.Day.ToString();
                int num = int.Parse(str[0].ToString()) + int.Parse(str[1].ToString());
                if (addDay.Month == num)
                {
                    happyDay++;
                    continue;
                }
            }

        }
        Console.WriteLine("{0}", happyDay);

    }
}