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