Problem:
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.

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Linq;
using System.Collections.Generic;

class Bmondai {
    static void Main()
    {
        var num = Int32.Parse(Console.ReadLine());
        var list = new List<int>();
        for (int i=0;i<num;++i)
        {
            list.Add(Int32.Parse(Console.ReadLine()));
        }
        var newList = list.OrderByDescending(x=>x);
        var isFirst = true;
        var ans = 0L;
        foreach (var l in newList)
        {
            if (isFirst)
            {
                ans += (l / 2);
                isFirst = false;
            }
            else
            {
                ans += l;
            }
        }
        Console.WriteLine(ans);
    }
}