#include <bits/stdc++.h>
using namespace std;
int main(){
	int i,j,N,b=0;//b是总分
	float c;//c是平均分
	cin>>N;
	int a[N]; 
	for(i=0;i<N;i++)
	{
		cin>>a[i];
		b=b+a[i];
	}
	c=b*1.0/N;
	for(i=0;i<N;i++)
	{
		for(j=i+1;j<=N-1;j++)
		if(a[i]<a[j]) swap(a[i],a[j]);
	}
	cout<<b<<endl; 
	printf( "%.2f",c);cout<<endl;
	for(i=0;i<N;i++)
	{
		cout<<a[i]<<" ";
	}
	return 0;
	}
/**************************************************************
	Problem: 1175
	User: ljl2
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/