#include <bits/stdc++.h>
using namespace std;
 
int main(){
    int n,x,a[100],i,s = 0,max = 0,min = INT_MAX;
    cin>>n;
    for(i = 0;i < n;i++){
        cin>>a[i];
        s = s + a[i];
         
        if(a[i] > max) max = a[i];
        if(a[i] < min) min = a[i];
    }
    sort(a,a+n);
     
    double v = (s - max - min) * 1.0 / (n - 2);
    cout<<fixed<<setprecision(1)<<v<<endl;
    for(i = 1;i <= n - 2;i++){
        cout<<a[i]<<" ";
    }
}
/**************************************************************
	Problem: 1453
	User: wangyiyang
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2076 kb
****************************************************************/