# coding: utf-8

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