#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,t,sum=0; 
    int a[150];
    cin>>n;
    for(int i=0;i<n;i++){
        cin>>a[i];
        sum+=a[i];
    }
    cout<<sum<<endl;
    printf("%.2f\n",sum * 1.0 /n);
    for(int i=1;i<=n-1;i++){
        for(int j=0;j<n-i;j++){
            if(a[j]<a[j+1]){
                t=a[j];
                a[j]=a[j+1];
                a[j+1]=t;
            }
        }
    }
    for(int i=0;i<n;i++){
        cout<<a[i]<<" ";
    }
    return 0;
}
/**************************************************************
	Problem: 1175
	User: HUANGYIBO
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/