#include<iostream>
using namespace std;

int main()
{
	int n, x[100001];

	cin >> n;

	int max = 0, j;
	for (int i = 1; i <= n; i++)
	{
		cin >> x[i];
		if (x[i] > max)
		{
			max = x[i];
			j = i;
		}
	}

	int sum = 0;
	for (int i = 1; i <= n; i++)
	{
		if (i == j) sum += x[i];
		else sum += x[i] / 2;
	}
	cout << sum << endl;
}