inp = map(int, input().split())

cnt = 0
for i in inp:
    if i%5 == 0 and i%3 == 0:
        cnt += 8
    elif i%5 == 0 and i%3 != 0:
        cnt += 4
    elif i%5 != 0 and i%3 ==0:
        cnt += 4
    else:
        cnt += len(str(i))

print(cnt)