#include <stdio.h>

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

    if (n < 0 || n > 10) {   // invalid size check
        printf("Invalid input\n");
        return 0;
    }

    int arr[100];  // max size sufficient

    for (int i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
        if (arr[i] < -10 || arr[i] > 10) {  // invalid element check
            printf("Invalid input\n");
            return 0;
        }
    }

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

    // Reverse array
    for (int i = 0, j = n - 1; i < j; i++, j--) {
        int temp = arr[i];
        arr[i] = arr[j];
        arr[j] = temp;
    }

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