a = list(map(int, input().split()))
cnt = 0
for x in a:
    if x % 3 == 0 and x % 5 == 0:
        cnt += 8
    elif x % 3 == 0 and x % 5 != 0:
        cnt += 4
    elif x % 5 == 0 and x % 3 != 0:
        cnt += 4
    elif x % 3 != 0 and x % 5 != 0:
        cnt += len(str(x))
print(cnt)