#include <queue>
#include <iostream>
using namespace std;

int main() {
   int val,n,sum;
   while(scanf("%d",&n)!=EOF){
      sum=0;
      priority_queue<int,vector<int>,greater<int> > myQueue;  //小顶堆
      for(int i=0;i<n;i++){
         cin>>val;
         myQueue.push(val);
      }
      while(myQueue.size()>1){ //若初始size为2,弹一个出来变为1,这时不会立即退出循环,而是会再弹一个
         int a=myQueue.top();
         myQueue.pop();
         int b=myQueue.top();
         myQueue.pop();
         int c=a+b;
         sum+=c;
         myQueue.push(c);
      }
      printf("%d\n",sum);
   }
   return 0;
}