# coding:utf-8
# data_input
data = list(map(int, input().split()))
count = 0
# checking
for i in data:
    if i % 15 == 0:
        count += 8
    elif i % 5 == 0 or i % 3 == 0:
        count += 4
    else:
        count += len(str(i))
# output
print(count)