#include<stdio.h>
int main() {
    int n;
    scanf("%d", &n);
    if(n < 0) {
        printf("Invalid Input");
        return 0;
    }
    int arr[20];
    for(int i = 0; i < n; i++) {
        scanf("%d", &arr[i]); 
    }
    int result[20];
    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++) {
        prifnf("%d", result[i]);
        if(i < n- 1) printf(" ");
    }
    return0;
}