#include <bits/stdc++.h>
using namespace std;
#define int long long
int a[100005],ans;
bool cmp(int x,int y){
	return x > y;
}
signed main(){
	int n;
	cin >> n;
	for (int i = 1;i <= n;i++) cin >> a[i];
	sort(a + 1,a + n + 1,cmp); 
	if (n <= 10){
		for (int i = 1;i <= n;i++){
			ans += a[i];
			for (int j = i + 1;j <= n;j++){
				a[j] = (int)sqrt(a[j]);
			} 
		}
		cout << ans << endl;
	} else {
		for (int i = 1;i <= 6;i++){
			ans += a[i];
			for (int j = i + 1;j <= 6;j++){
				a[j] = (int)sqrt(a[j]);
			}
		}
		ans += n - 6;
		cout << ans << endl;
	}
	return 0;
}