import std.stdio;
import std.algorithm;
import std.conv;
import std.datetime;

void main()
{
    int numHappy;
    for (auto date = Date(2015, 1, 1);
         date.year == 2015; date += 1.dur!"days")
    {
        if (date.month == date.day / 10 + date.day % 10) {
            ++numHappy;
        }
    }
    writeln(numHappy);
}