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.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AtCoder
{
    class Program
    {
        static void Main()
        {
            IO io = new IO();

            //ここから
            int n = io.ReadLineToInt();
            int[] p = new int[n];
            for(int i = 0; i < n; i++)
            {
                p[i] = io.ReadLineToInt();
            }
            int ans = p.Sum() - (p.Max() / 2);
            
            //ここまで
            Console.Write(ans);
            Console.ReadKey();
        }
    }

    //関数
    public class Func
    {
        public void Swap<T>(ref T a,ref T b)
        {
            T temp;
            temp = a;
            a = b;
            b = temp;
        }
    }

    //IOを担う関数群
    public class IO
    {
        //stringの入力
        public string ReadLineToString()
        {
            return Console.ReadLine();
        }

        //intの入力
        public int ReadLineToInt()
        {
            return int.Parse(Console.ReadLine());
        }

        //空白区切りの複数の文字列の入力をstring[]にして返す
        public string[] ReadLineToStringArray()
        {
            return Console.ReadLine().Split(' ').ToArray();
        }


        //空白区切りの複数の整数の入力をint[]にして返す
        public int[] ReadLineToIntArray()
        {
            return Console.ReadLine().Split(' ').Select(int.Parse).ToArray();
        }

        //空白区切りの複数の文字列の入力をList<string>で受け取る
        public List<string> ReadLineToStringList()
        {
            return Console.ReadLine().Split(' ').ToList();
        }

        //空白区切りの複数の整数の入力をList<int>で受け取る
        public List<int> ReadLineToIntList()
        {
            return Console.ReadLine().Split(' ').Select(int.Parse).ToList();
        }
    }

}