Problem10528--ABC115 —— B - Christmas Eve Eve

10528: ABC115 —— B - Christmas Eve Eve

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Time Limit : 1.000 sec  Memory Limit : 512 MiB

Description

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?

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.

Constraints

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

Sample 1 Input

3
4980
7980
6980

Sample 1 Output

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 2 Input

4
4320
4320
4320
4320

Sample 2 Output

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

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