using System;

class Program
{
    static bool IsHappyDay (string x, string y)
    {
        int X = int.Parse(Convert.ToString(x[0]))+int.Parse(Convert.ToString(x[1]));
        int Y = int.Parse(Convert.ToString(y[0])) + int.Parse(Convert.ToString(y[1]));
        return (X == Y) ? true : false;
    }
    static void Main(string[] args)
    {
        var happyDay = 0;
        var dt = new DateTime(2015, 1, 1);
        var X = "";
        var Y = "";
        for (int i=0; i < 365; i++)
        {
            X = dt.Month.ToString("D2");
            Y = dt.Day.ToString("D2");
            if (IsHappyDay(X, Y)) happyDay++;
            dt = dt.AddDays(1);
        }
        Console.WriteLine(happyDay);
    }
}