#include<bits/stdc++.h>
using namespace std;
int main(){
	int i,j,a[160]={0},n;
	float z=0,p=0;
	cin>>n;
	for(i=0;i<n;i++){
		cin>>a[i];
	}
	for(i=n-1;i>0;i--){
		for(j=0;j<i;j++){
			if(a[j]<a[j+1]){
				swap(a[j],a[j+1]);
			}
		}
	}
	for(i=0;i<n;i++){
		z=z+a[i];
	}
	cout<<z<<endl;
	p=z/n;
	printf("%.2f\n",p);
	for(i=0;i<n;i++){
		cout<<a[i]<<" ";
	}
}
/**************************************************************
	Problem: 1175
	User: huxuanchen
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2076 kb
****************************************************************/