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

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