#include <bits/stdc++.h>
using namespace std;
int main(){
    int n,x,a[100]={0},i,s=0,h=0,l=INT_MAX;
    cin>>n;
    for(i = 0;i < n;i++){
        cin>>a[i];
        s = s + a[i];
          
        if(a[i] > h) h = a[i];
        if(a[i] < l) l = a[i];
    }
    sort(a,a+n);
      
    double v = (s - h - h) * 1.0 / (n - 2);
    cout<<fixed<<setprecision(1)<<v<<endl;
    for(i = 1;i <= n - 2;i++){
        cout<<a[i]<<" ";
    }
}
/**************************************************************
	Problem: 1453
	User: huanghengyi
	Language: C++
	Result: Wrong Answer
****************************************************************/