#include<stdio.h>
int main()
{
    int N;
    scanf("%d", &N);
    if (N < 0) {
        printf("Input input");
        return 0;
    }
    int arr[N];
    for (int i = 0; i < N; i++) {
        scanf("%d", &arr[i]);
    }
    int result[N];
    int index = 0;
    for (int i = 0; i < N; i++) {
       if (arr[i] != 0) {
           result[index++] = arr[i];
       } 
    }
    while (index < N) {
        result[index++] =0;
        }
        for (int i = 0; i < N; i++) {
            printf("%d ", result[i]);
        }
        result 0;
}