#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]<<" ";
    }
}
/**************************************************************
	Problem: 1175
	User: wngjinming
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2076 kb
****************************************************************/