// editor1#include <stdio.h>

int main() {
    int N;
    scanf("%d", &N);

    if (N < 0) {
        printf("Invalid Input\n");
        return 0;
    }

    int arr[N], result[N];
    int count = 0;

    for (int i = 0; i < N; i++) {
        scanf("%d", &arr[i]);
        if (arr[i] != 0) {
            result[count++] = arr[i];
        }
    }

    // Fill remaining positions with zeros
    while (count < N) {
        result[count++] = 0;
    }

    for (int i = 0; i < N; i++) {
        printf("%d ", result[i]);
    }

    return 0;
}