import java.util.*;
class main{
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        int n=sc.nextInt();
        if(n<=0){
            System.out.print("Invalid input");
            return;
        }
        int count=0;
        int arr[]=new int[n];
        for(int i=0;i<n;i++){
            if(!sc.hasNextInt){
                System.out.print("Invalid input");
            return;
            }
            arr[i]=sc.nextInt();
        }
       for(int i=0;i<n;i++){
           if(arr[i]!=0){
               System.out.print(arr[i]+" ");
               count++;
           }
           }
         for(int i=count;i<n;i++){
             System.out.print("0 ");
         }  
       }
    }