#include<iostream>
using namespace std;
int main(){
    int N;
    cin >> N;
    if (N < 0){
        cout << "Invalid Input";
        return 0;
    }
    int arr[N];
    for(int i = 0; i < N; i++){
        cin >> arr[i];
    }
    int index = 0;
    for (int i = 0; i < N; i++){
        if (arr[i] != 0){
            arr[index++] = arr[i];
        }
    }
    while (index < N) {
        arr[index++] = 0;
    }
    for (int i =0; i < N; i++) {
        cout << arr[i] << " ";
    }
    return 0;
}