#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <iomanip>
using namespace std;

int main() {
    int n;
    cin >> n;
    vector<double> samples(n);
    for (int i = 0; i < n; ++i) {
        cin >> samples[i];
    }
    sort(samples.begin(), samples.end());  // 对样本进行排序
    double sum = 0.0;
    for (int i = 1; i < n - 1; ++i) {
        sum += samples[i];
    }
    double average = sum / (n - 2);  // 平均白细胞数量
    double maxDiff = 0.0;
    for (int i = 1; i < n - 1; ++i) {
        maxDiff = max(maxDiff, abs(samples[i] - average));
    }
    cout << fixed << setprecision(2) << average << " " << maxDiff << endl;
    return 0;
}

这个是对的，可以试一试，不对的话给差评，如果是对的，麻烦给个好评，谢谢！