/* 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
	{
		List<Integer> list = new ArrayList<Integer>();
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		int[] defaultArray = new int[n];
		// do validation for n
		for (int i = 0; i < n; i++) {
			int temp = in.nextInt();
 
			if (temp != 0) {
				list.add(temp);
				defaultArray[i] = temp;
			}
		}
		Integer[] positiveArray = new Integer[list.size()];
		positiveArray = list.toArray(positiveArray);
		System.out.println(Arrays.toString(defaultArray));
		System.out.println(Arrays.toString(positiveArray));
	}
}

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NQoxCjIKMAozCjI=

5
1
2
0
3
2