from datetime import datetime
from datetime import timedelta

start_day = datetime.strptime('20150101','%Y%m%d')
end_day = datetime.strptime('20151231','%Y%m%d')

def daterange(start,end):
    for n in range((end_day - start_day).days+1):
        yield start + timedelta(n)

a = []
b = []
for i in daterange(start_day,end_day):
    a.append(i.month)
    b.append(str(i.day))

c=0
    
for i,j in zip(a,b):
    d = 0
    for k in j:
        d += int(k)
        print(k,d)
    if d == i:
        c+=1
            
print(c)