#include <algorithm>
using namespace std;
 
bool compare(int a, int b) {
    return a > b;
}
 
int main() {
    int N;
    cin >> N;
    int scores[150];
    int total = 0;
 
    // 读取成绩并计算总分
    for (int i = 0; i < N; i++) {
        cin >> scores[i];
        total += scores[i];
    }
 
    // 计算平均分
    double average = static_cast<double>(total) / N;
 
    // 对成绩进行从高到低排序
    sort(scores, scores + N, compare);
 
    // 输出总分
    cout << total << endl;
    // 输出平均分，保留两位小数
    cout << fixed << setprecision(2) << average << endl;
    // 输出排序后的成绩
    for (int i = 0; i < N; i++) {
        if (i > 0) {
            cout << " ";
        }
        cout << scores[i];
    }
    cout << endl;
 
    return 0;
}    

/**************************************************************
	Problem: 1175
	User: wengsihan
	Language: C++
	Result: Compile Error
****************************************************************/