def main():
    ctr = 0
    for number in map(int, input().split()):
        if number % 15 == 0:
            ctr += 8
        elif number % 3 == 0 or number % 5 == 0:
            ctr += 4
        else:
            ctr += len(str(number))

    print(ctr)


if __name__ == "__main__":
    main()