#include <bits/stdc++.h> using namespace std; int main() { int n; cin>>n; int a[n]; for(int i = 0;i < n;i++) { cin>>a[i]; } int max = 0; int min = a[0]; for(int i = 0;i < n;i++) { if(max < a[i]) { max = a[i]; } if(min > a[i]) { min = a[i]; } } double sum = 0; for(int i = 0;i < n;i++) { if(a[i] == max || a[i] == min) { continue; } else { sum += a[i]; } } n -= 2; cout<<setprecision(2)<<fixed<<sum / n<<endl; return 0; }