M = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
D1 = [0, 1, 2]
D2 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
c = 1

for x in M:
    for y in D1:
        for z in D2:
            if y + z == x:
                c += 1

print(c)