A = list(map(int, input().split()))
ans = 0
for a in A:
    if a%3 == 0 and a%5 == 0:
        ans += 8
    elif a%3 == 0:
        ans += 4
    elif a%5 == 0:
        ans += 4
    else:
        ans += len(str(a))
print(ans)