import java.util.*;
import java.util.stream.*;
import java.util.LinkedList;

class summ extends Thread{
   LinkedList<Integer> last;


    public summ(LinkedList<Integer> a){
        last=a;
    }

    @Override
    public void run(){
          int sum=0;
           for (int i = 0; i < last.size(); i++) {
              sum += last.get(i);
            }
          System.out.println("summation of array is : " + sum);

    }
}

class Average extends Thread{
       LinkedList<Integer> last;

    public Average(LinkedList<Integer> a){
        last=a;
    }

    @Override
    public void run(){
        int sum=0;
           for (int i = 0; i < last.size(); i++) {
              sum += last.get(i);
            }
           double average=sum/last.size();
        System.out.println("average is : " + average);
    }
}
/*
class MinMax extends Thread{
    int [] array;

    public MinMax(int [] a){
        array=a;
    }

    @Override
    public void run(){
        int min = Arrays.stream(array).min().getAsInt();
        int max = Arrays.stream(array).max().getAsInt();
        System.out.println("Min = " + min);
        System.out.println("Max = " + max);
    }
} */
public class Test {

    /*
    public static void median(int[] array){
        Arrays.sort(array);
        double median;
        if (array.length % 2 == 0)
            median = ((double)array[array.length/2] + (double)array[array.length/2 - 1])/2;
        else
            median = (double) array[array.length/2];
    System.out.println("Median is : " + median);

    }

    public static void sum(int[] array){
    }*/
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        LinkedList<Integer> last = new LinkedList<Integer>();


    System.out.println("Please enter 10 numbers");

    for (int i = 0; i < 9; i++) {
        Average a = new Average(last);
       // MinMax m = new MinMax(last);
        summ z=new summ(last);
        last.add(s.nextInt());
        a.start();
        //m.start();
        z.start();
        try{
            Thread.sleep(50);
            z.join();a.join();//m.join();
        }
        catch(InterruptedException iio){}
    }




    //minmax(array);
    /*median(array);
    sum(array);*/
    }

}