def FizzBuzz(num):
    if num % 15 == 0:
        return 8
    elif num % 3 == 0 or num % 5 == 0:
        return 4
    else:
        return len(str(num))
    
a_list = list(map(int,input().split()))
sum = 0
for i in a_list:
    sum += FizzBuzz(i)

print(sum)