// editor2

#include <stdio.h>

int main() {
    int n;

    // Read size of array
    scanf("%d", &n);

    // Check for invalid input
    if (n < 0) {
        printf("Invalid Input");
        return 0;
    }

    int arr[20];  // max size is small (<=10), 20 is safe

    // Read array elements
    for (int i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
    }

    // Print original array
    for (int i = 0; i < n; i++) {
        printf("%d ", arr[i]);
    }
    printf("\n");

    // Print reversed array
    for (int i = n - 1; i >= 0; i--) {
        printf("%d ", arr[i]);
    }

return  ;
}