count = 0
l31 = [1, 3, 5, 7, 8, 10, 12]
l30 = [4, 6, 9, 11]

for i in l31:
    for j in range(0,32):
        sum = j % 10 + j // 10
        if i == sum:
            count += 1

for i in l30:
    for j in range(0,31):
        sum = j % 10 + j // 10
        if i == sum:
            count += 1

for i in range(0,29):
    sum = i % 10 + i // 10
    if 2 == sum:
        count += 1

print (count)