#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,a[200],v=0;
	float z;
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>a[i];
		v=v+a[i];
	}
	for(int i=1;i<n;i++){
	for(int j=1;j<=n-i;j++){
		if(a[j]<a[j+1])	swap(a[j],a[j+1]);
		}
	}
    cout<<v<<endl;
    z=v*1.0/n;
    printf("%.2f\n",z);
    for(int i=1;i<=n;i++){
		cout<<a[i]<<" ";}
   
    
    
	

	return 0;
}

/**************************************************************
	Problem: 1175
	User: lidongcheng
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/