ans = 0

for x in range(1,13):
    if x == 1 or x == 3 or x == 5 or x == 7 or x == 8 or x == 10 or x == 12:
        for y in range(1,32):
            S = str(y)
            sum = 0
            for s in S:
                sum += int(s)
            if x == sum:
                ans += 1
    if x == 4 or x == 6 or x == 9 or x == 11:
        for y in range(1,30):
            S = str(y)
            sum = 0
            for s in S:
                sum += int(s)
            if x == sum:
                ans += 1
    if x == 2:
        for y in range(1,29):
            S = str(y)
            sum = 0
            for s in S:
                sum += int(s)
            if x == sum:
                ans += 1
print(ans)