mArr = [31, 29, 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 mArr[m-1] > (d1+10+d2) :
            count = count + 1
print(count)