You have a set of items, each having some integer weight not greater than $8$. You denote that a subset of items is good if total weight of items in the subset does not exceed $W$.

You want to calculate the maximum possible weight of a good subset of items. Note that you have to consider the empty set and the original set when calculating the answer.

Input

The first line contains one integer $W$ ($0 \le W \le 10^{18}$) — the maximum total weight of a good subset.

The second line denotes the set of items you have. It contains $8$ integers $cnt_1$, $cnt_2$, ..., $cnt_8$ ($0 \le cnt_i \le 10^{16}$), where $cnt_i$ is the number of items having weight $i$ in the set.

Output

Print one integer — the maximum possible weight of a good subset of items.

见题面 Input 部分

见题面 Output 部分