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Score : $200$ points

### Problem Statement

In some other world, today is the day before Christmas Eve.

Mr. Takaha is buying $N$ items at a department store. The regular price of the $i$-th item $(1 \leq i \leq N)$ is $p_i$ yen (the currency of Japan).

He has a discount coupon, and can buy one item with the highest price for half the regular price. The remaining $N-1$ items cost their regular prices. What is the total amount he will pay?

### Constraints

• $2 \leq N \leq 10$
• $100 \leq p_i \leq 10000$
• $p_i$ is an even number.

### Input

Input is given from Standard Input in the following format:

$N$
$p_1$
$p_2$
$:$
$p_N$


### Output

Print the total amount Mr. Takaha will pay.

### Sample Input 1

3
4980
7980
6980


### Sample Output 1

15950


The $7980$-yen item gets the discount and the total is $4980 + 7980 / 2 + 6980 = 15950$ yen.

Note that outputs such as 15950.0 will be judged as Wrong Answer.

### Sample Input 2

4
4320
4320
4320
4320


### Sample Output 2

15120


Only one of the four items gets the discount and the total is $4320 / 2 + 4320 + 4320 + 4320 = 15120$ yen.