#include <bits/stdc++.h>
#define FAST ios_base::sync_with_stdio(0)
#define dbug(x) cout<<x<<" "
using namespace std;
int main()
{
FAST;
int t;
while(cin>> t && t){
priority_queue<int ,vector<int>, greater<int> >pq;
int sum=0 , cost=0;
for(int i=0; i<t; i++){
int x;
cin>>x;
pq.push(x);
}
if(t==1){cout<<pq.top();continue;}
for(int i=1; i<t; i++){
int x=pq.top();
pq.pop();
x+=pq.top();
sum+=x;
pq.pop();
pq.push(x);
}
cout<<sum<<'\n';
}
return 0;
}
#define FAST ios_base::sync_with_stdio(0)
#define dbug(x) cout<<x<<" "
using namespace std;
int main()
{
FAST;
int t;
while(cin>> t && t){
priority_queue<int ,vector<int>, greater<int> >pq;
int sum=0 , cost=0;
for(int i=0; i<t; i++){
int x;
cin>>x;
pq.push(x);
}
if(t==1){cout<<pq.top();continue;}
for(int i=1; i<t; i++){
int x=pq.top();
pq.pop();
x+=pq.top();
sum+=x;
pq.pop();
pq.push(x);
}
cout<<sum<<'\n';
}
return 0;
}
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