#include<iostream> using namespace std; int main(){ int max=0,min=100,sum=0,num; int a[20001]={0}; cin>>num; for(int i=1;i<=num;i++){ cin>>a[i]; sum+=a[i]; if(a[i]>max){ max=a[i]; } if(a[i]<min){ min=a[i]; } sum-=max+min; } printf("%.1lf",sum*1.0/(num-2)); return 0; }