#include <stdio.h>
int main()
{
    int N;
    scanf(scanf("%d", &N);
    if (N < 0) {
        printf("Invalid Input");
        return 0;
    }
    int arr[N];
    for (int i = 0; i < N; i++) {
        scanf("%d", &arr[i]);
    }
    int out[N];
    int j = 0;
    for (int i = 0; i < N; i++) {
        if (arr[i] != 0)
        out[j++] = arr[i];
    }
    while (j < N) {
        out[j++] = 0;
    }
    for (int i = 0; i < N; i++) {
        if (i == N - 1)
        printf("%d", out[i]);
        else
        printf("%d ", out[i]);
    }
    return 0;
}