#!/usr/bin/env ruby

require 'date'
hday = 0

iday = Date.new(2015, 1, 1)

while ((iday = iday.next_day).year < 2016)
  month = iday.month.to_i
  day = iday.day.to_s
  a, b = day.split(/./).map(&:to_i)
  if [a, b].compact.sum == month
    hday += 1
  end
end

p hday