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