#include<iostream> using namespace std; int main(){ int a[20000],n,score,max=0,min=100; float average,sum; cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]; sum+=a[i]; if(a[i]>max) max=a[i]; if(a[i]<min) min=a[i]; } average=(sum-max-min)/(n-2); // printf("%d %d",max,min); printf("%.1f",average); return 0; }