#include<bits/stdc++.h>
#define ll long long int
using namespace std;
int main()
{
int n, i, m;
while(cin >> n && n>0)
{
priority_queue<int, vector<int>, greater<int> >a;
for(i=1;i<=n;i++)
{
cin >> m;
a.push(m);
}
ll t = a.top();
a.pop();
t += a.top();
a.pop();
a.push(t);
ll t1 = 0;
t1 += t;
t = 0;
i = 2;
while(!a.empty())
{
t += a.top();
a.pop();
i--;
if(i == 0)
{
if(!a.empty())
a.push(t);
t1 += t;
t = 0;
i = 2;
}
}
cout << t1 << "\n";
}
return 0;
}
#define ll long long int
using namespace std;
int main()
{
int n, i, m;
while(cin >> n && n>0)
{
priority_queue<int, vector<int>, greater<int> >a;
for(i=1;i<=n;i++)
{
cin >> m;
a.push(m);
}
ll t = a.top();
a.pop();
t += a.top();
a.pop();
a.push(t);
ll t1 = 0;
t1 += t;
t = 0;
i = 2;
while(!a.empty())
{
t += a.top();
a.pop();
i--;
if(i == 0)
{
if(!a.empty())
a.push(t);
t1 += t;
t = 0;
i = 2;
}
}
cout << t1 << "\n";
}
return 0;
}
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