#include <iostream>;
#include <iterator>;
# include <algorithm>;
#include <array>;
using namespace std;

const int MaxN = 100000;
int main()
{
	int husdb;
	cin >> husdb;
	int sutok[MaxN] = {};
	int max = 0;
	int ismDb;
	ismDb = 0;
	for (int i = 1; i <= husdb; i++)
	{
		cin >> sutok[i-1];
	}
	sort(sutok,sutok + husdb);

	for (int i = 1; i < husdb; i++)
	{
		
		if (sutok[i] == sutok[i-1])
		{
			ismDb++;
		}
	}
	max = sutok[husdb-1];
	cout << ismDb+max;

}