#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N=1e5+1;
int n,a[N],ans;
signed main(){
	cin>>n;
	for(int i=1;i<=n;i++) cin>>a[i];
	sort(a+1,a+n+1,greater<int>());
	for(int i=1;i<=n;i++){
		ans+=a[i];
		if(a[i]==1){
			cout<<ans+n-i;
			return 0;
		}
		for(int j=i+1;j<=n;j++) a[j]=sqrt(a[j]);
	}
	cout<<ans;
}
//p3 13:17-13:43
//accepted