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.