mArr = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
count = 0

for m in range(1,13) : 
    for d1 in range(0, 4) : 
        d2 = m - d1
        if (d2 >= 0) and (d2 < 10) and (mArr[m-1] > (d1*10+d2)) :
            count = count + 1
print(count)