#include <bits/stdc++.h>
using namespace std;

int ans, a[100005];

bool cmp(int x, int y)
{
	return x > y;
}

int main()
{
	int n;
	cin >> n;
	for (int i = 1; i <= n; i++)
	{
		cin >> a[i];
	}
	sort(a + 1, a + n + 1, cmp);
	for (int i = 1; i <= n; i++)
	{
		if (i >= 10) ans++;
		else 
		{
			for (int j = 1; j < i; j++)
			{
				a[i] = sqrt(a[i]);                                                                            
			}
			ans += a[i];
		}
	}
	cout << ans;
	return 0;
}