#include<iostream>
#include<algorithm>
#include<cstdio>
using namespace std;

int main()
{
    int n, m; 
    cin >> n;

    int ans1 = -1, ans2 = 101;
    double ans3 = 0;
    for(int i = 0; i < n; i++)
    {
        cin >> m;
        if(m > ans1) ans1 = m;
        if(m < ans2) ans2 = m;
        ans3 += m;
    }

    ans3 = ans3 / n;
    cout << ans1 << endl;
    cout << ans2 << endl;
    printf("%.2lf", ans3);
    return 0;
}