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;

namespace B___Christmas_Eve_Eve
{
    class Program
    {
        static void Main(string[] args)
        {
            

            //入力
            var N = int.Parse(Console.ReadLine());

            //配列生成
            int[] input;
            input = new int[N];

            
            for(int i = 1; i<=N; i++)
            {
              
                input[i-1] = int.Parse(Console.ReadLine());
            }
            

            Array.Sort(input, (a, b) => b - a);      //降順の並び替え

            int sum = input[0] / 2;

            for(int i =1; i<input.Length; i++)
            {
                sum += input[i];
            }

            //出力
            Console.WriteLine(sum);
        }
    }
}