A = list(map(int, input().split()))

res = 0

for a in A:
    if a % 3 == 0 and a % 5 == 0:
        res += 8
    elif a % 3 == 0:
        res += 4
    elif a % 5 == 0:
        res += 4
    else:
        res += len(str(a))

print(res)