import java.io.*;
import java.util.*;

public class Solution {

    public static double mean(int arr[], int n){
        long sum = 0;
        for(int i = 0; i < n; i++){
            sum += arr[i];
        }
        double ans = (double) sum / (long) n;
        return ans;
    }

    public static double median(int arr[], int n){
        Arrays.sort(arr);
        int mid = n/2;
        double ans = ((double) arr[mid] + (double) arr[mid-1]) / 2;
        return ans;
    }

    public static int mode(int X[], int n){
        int mode=0,temp, count,max=0;
        for(int i=0;i<n;i++)
       {
            temp=X[i];
            count=0;
            for(int j=0; j<n; j++)
            {
                if(temp==X[j])
                {
                    count++;
                }
                if(count>max)
                {
                    max=count;
                    if(max==1)
                    {
                        mode=X[0];
                    }
                    mode=temp;
                }
            }           
        }
        return mode;
    }

    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        int n = s.nextInt();
        int arr[] = new int[n];
        for(int i = 0; i < n; i++){
            arr[i] = s.nextInt();
        }
        System.out.format("%.1f\n", mean(arr, n));
        System.out.format("%.1f\n",median(arr, n));
        System.out.println(mode(arr, n));
        
    }
}