#include <stdio.h>

int main() {
    int N;
    scanf("%d", &N);
    
    if (N < 0) {
        printf("Invalid Input");
        return 0;
    }
    
    int arr[100], result[100];
    int i, k =0;
    
    for (i = 0; i < N; i++) {
        scanf("%d", &arr[i]);
    }
    
    for (i = 0; i < N; i++) {
        if (arr[i] != 0) {
            result[k++] = arr[i];
        }
    }
    
    While (K < N) {
        result[k++] = 0;
    }
    
    for (i = 0; i < N; i++) {
        printf("%d ", result[i]);
    }
    
    return 0;
    
    
    }