#include<bits/stdc++.h>
using namespace std;
int main()
{
	int i,m,n,a[10],p,x=0,b;
	cin>>n;
	for(i=0;i<n;i++){
		cin>>a[i];
		x+=a[i];
	}
	for(i=0;i<n-1;i++){
		for(p=0;p<n-i-1;p++){
			if(a[p]<a[p+1])
			swap(a[p],a[p+1]); 
		}
	}cout<<x<<endl;
	printf("%.2f \n",x*1.00/n);
	for(i=0;i<n;i++){
		cout<<a[i]<<" ";
	}
	return 0;
}
/**************************************************************
	Problem: 1175
	User: houshanglin
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/