# Read the input as integers
nums = list(map(int, input().split()))

total = 0
for num in nums:
    if num % 15 == 0:
        total += 8
    elif num % 3 == 0:
        total += 4
    elif num % 5 == 0:
        total += 4
    else:
        total += len(str(num))

print(total)