#include<stdio.h>
int main()
{
    int N;
    scanf("%d", &N);
    if (N <= 0 || N > 10)
    {
        printf("Invalid input");
        return 0;
    }
    int arr[N];
    for (int i = 0; i < N; i++)
    {
        scanf("%d", &arr[i]);
        if (arr[i] < -10 || arr[i] > 10)
        {
            printf("Invalid input");
            return 0;
        }
    }
    for (int i = 0; i < N; i++)
    {
        printf("%d ", arr[i];
    }
    printf("\n");
    for (int i = N - 1; i >= 0; i--)
    {
        printf("%d ", arr[i]);
    }
    return 0;
}