5N

#include<bits/stdc++.h>
using namespace std;


void pushZerosToEnd(int arr[], int n)
{
    int count = 0;


    for (int i = 0; i < n; i++)
        if (arr[i] != 0)
            arr[count++] = arr[i];


    while (count < n)
        arr[count++] = 0;
}


int main()
{
#ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
        int n;
        cin>>n;
        int arr[n];

        for(int i=0;i<n;i++){
                cin>>arr[i];
            }

    pushZerosToEnd(arr, n);

    for (int i = 0; i < n; i++)
        cout << arr[i]<<" ";

}