A13996. Strange Set

Note that the memory limit is unusual.

You are given an integer $n$ and two sequences $a_1, a_2, \dots, a_n$ and $b_1, b_2, \dots, b_n$ .

Let's call a set of integers $S$ such that $S \subseteq \{1, 2, 3, \dots, n\}$ strange, if, for every element $i$ of $S$ , the following condition is met: for every $j \in [1, i - 1]$ , if $a_j$ divides $a_i$ , then $j$ is also included in $S$ . An empty set is always strange.

The cost of the set $S$ is $\sum\limits_{i \in S} b_i$ . You have to calculate the maximum possible cost of a strange set.

The first line contains one integer $n$ ( $1 \le n \le 3000$ ).

The second line contains $n$ integers $a_1, a_2, \dots, a_n$ ( $1 \le a_i \le 100$ ).

The third line contains $n$ integers $b_1, b_2, \dots, b_n$ ( $-10^5 \le b_i \le 10^5$ ).

Print one integer — the maximum cost of a strange set.

The strange set with the maximum cost in the first example is $\{1, 2, 4, 8, 9\}$ .

The strange set with the maximum cost in the second example is empty.