/* package whatever; // don't place package name! */

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

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Random r = new Random();
		int n[] = new int[r.nextInt(15)];
		System.out.println("length: " + n.length);
		for(int i = 0; i < n.length; i++) {
			n[i] = r.nextInt(10);
		}
		System.out.println(Arrays.toString(n));
		
	}
}