#!/usr/bin/python
from collections import namedtuple

def f(x):
    t, res = x, 0
    while t:
        t, m = divmod(t, 10)
        res += m
    return res

arr = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
Date = namedtuple('Date', 'month, day')
print len(filter(lambda x: x.month == f(x.day), (Date(m+1, d+1) for m, ds in enumerate(arr) for d in xrange(ds))))