nums = [int(x) for x in input().split()]
ans = 0

for num in nums:
    sw = 0
    if num % 5 == 0:
        ans += 4
        sw = 1
    if num % 3 == 0:
        ans += 4
        sw = 1
    if sw == 0:
        ans += len(str(num))
print(ans)