import pandas as pd
date_list = pd.date_range(start="2015-01-01", end="2015-12-31", freq="D")

happy_day = 0

for dt in date_list:
    y, m, dt = str(dt).split("-")
    d, t = dt.split(" ")
    if int(m) == int(d[0]) + int(d[1]):
        happy_day = happy_day + 1

print(str(happy_day))