import java.util.*;
import java.io.*;
public class MakeBigArrayPerm
{
    public static void main(String[] args) throws IOException
    {
        Random r = new Random();
    final int ARRAY_SIZE = 20;
        int [] nums1 = new int [ARRAY_SIZE];
    int [] nums2 = new int [ARRAY_SIZE];

    File outFile = new File ("output.txt");
    FileWriter fw = new FileWriter (outFile);
    PrintWriter pw = new PrintWriter (fw);

    //fill
    for(int i = 0; i < ARRAY_SIZE; i++)
        {
            nums1[i] = r.nextInt(9999999);
      pw.print(nums1[i] + ", ");
        }
    pw.println();
    //copy
    for(int i = 0; i < ARRAY_SIZE; i++)
    {
      nums2[i] = nums1[i];
    }
        //shuffle
        for (int i = 0; i < ARRAY_SIZE; i++)
    {
      int rIdx = r.nextInt(ARRAY_SIZE);
      int temp = nums2[i];
      nums2[i] = nums2[rIdx];
      nums2[rIdx] = temp;
    }
    for(int i = 0; i < ARRAY_SIZE; i++)
    {
      pw.print(nums2[i] + ", ");
    }
    pw.close();
    }
}