A9421 | Line to Cashier

Little Vasya went to the supermarket to get some groceries. He walked about the supermarket for a long time and got a basket full of products. Now he needs to choose the cashier to pay for the products.

There are $n$ cashiers at the exit from the supermarket. At the moment the queue for the $i$ -th cashier already has $k_{i}$ people. The $j$ -th person standing in the queue to the $i$ -th cashier has $m_{i,j}$ items in the basket. Vasya knows that:

- the cashier needs 5 seconds to scan one item;
- after the cashier scans each item of some customer, he needs 15 seconds to take the customer's money and give him the change.

Of course, Vasya wants to select a queue so that he can leave the supermarket as soon as possible. Help him write a program that displays the minimum number of seconds after which Vasya can get to one of the cashiers.

The first line contains integer $n$ ( $1<=n<=100$ ) — the number of cashes in the shop. The second line contains $n$ space-separated integers: $k_{1},k_{2},...,k_{n}$ ( $1<=k_{i}<=100$ ), where $k_{i}$ is the number of people in the queue to the $i$ -th cashier.

The $i$ -th of the next $n$ lines contains $k_{i}$ space-separated integers: $m_{i,1},m_{i,2},...,m_{i,ki}$ ( $1<=m_{i,j}<=100$ ) — the number of products the $j$ -th person in the queue for the $i$ -th cash has.

Print a single integer — the minimum number of seconds Vasya needs to get to the cashier.