// editor2
#include <stdio.h>

int main() {
    int n
    scanf("%d", &n);
    if (n < 0) {
        printf("Invalid Input\n");
        return 0;
    }

    if (n == 0) {
        return 0;
    }

    int items[n];
    for (int i = 0; i < n; i++) {
        scanf("%d", &items[i]);
    }

    int count = 0;

    for (int i = 0; i < n; i++) {
        if (items[i] != 0) {
            items[count] = items[i];
            count++;
        }
    }

    while (count < n) {
        items[count] = 0;
        count++;
    }

    for (int i = 0; i < n; i++) {
        printf("%d", items[i]);
        if (i < n - 1) {
            printf(" ");
        }
    }
    printf("\n");

    return 0;
}