#include<stdio.h>
#include<stdlib.h>


int sum(int x[], int n)
{
  int a, t_sum=0;
  for(a=1; a<n-1; a++)
    {
      t_sum+=x[a];
    }
  return t_sum;
}


int main(void)
{
  int count=0, check=0, i=0,k=0, avg[10]={0};

  while(1)
    {
      int  temp=0, score[100]={0};
      scanf("%d", &count);
      if(count==0)
	{

	  for(i=1;i<=k;i++)
	    {
	      printf("%d\n", avg[i]);
	    }
	  return 0;
	}
      else
	{
	  k++;
	  for(i=0; i<count; i++)
	    {
	      scanf("%d", &check);
	      score[i]=check;
	    }
int t, j, temp;

  for(t=0;t<count-1;t++)
    {
      for(j=count-1;j>t; j--)
	{
	  if(score[j-1]>score[j])
	    {
	    temp=score[j];
	  score[j]=score[j-1];
	  score[j-1]=temp;
	    }
	}
    }
	  temp=sum(score,count);

	  avg[k]=temp/(count-2);
	  
	}
    }

}