#include<cstdio>
int main()
{
int n,sum,x,max,min;
while(scanf("%d",&n)!=EOF&&n!=0)
sum=0;
max=0,min=1000;
for(int i=0;i<n;i++)
scanf("%d",&x);
sum+=x;
if(x>max)max=x;
if(x<min)min=x;
}
sum-=max+min;
sum/=n-2;
printf("%d\n",sum);
return 0;