# coding=utf-8


def is_fizz_buss(num):
    if num % 3 == 0 and num % 5 == 0:
        return 8
    elif num % 3 == 0 or num % 5 == 0:
        return 4
    else:
        return len(str(num))


list = input().split()
sum = 0
for num in list:
    sum += is_fizz_buss(int(num))
print(sum)