#include <iostream>
using namespace std;
int main()
{
    int n , x , counter;
    cin >> n;
    counter = 0;

    for ( int i = 0 ; i < n ; i ++ )
    {
        cin >> x;
        if ( x != 0 )
        {
            cout << x <<" "; 
        }

        else if ( x == 0 )
        {
            counter ++;
        }
    }

    for ( int i = 0 ; i < counter ; i ++ )
    {
        cout <<'0' <<" ";
    }


    return 0;
}