from datetime import date
from dateutil.relativedelta import relativedelta
dt = date(2016,1,1)
happy = 0
for i in range(1,366):
    cl = dt-relativedelta(days=i)
    chk = str(cl.day)
    if len(chk) == 2:
        chk = int(chk[0]) + int(chk[1])
    else:
        chk = int(chk)
    if int(cl.month) == chk:
        happy +=1
print(str(happy)+"\n")