#include <iostream>
using namespace std;

int main() {

    int arr[6 ] = { 0 };

    int len = sizeof(arr) / sizeof(int);
    
    for (int i = 0; i < len; i++) {
        cin >> arr[i]; //输入数据
    }

    //反转前
    cout << '['; //输出数组左端
    for (int i = 0; i < len - 1; i++) {
        cout << arr[i] << ", "; //输出数据
    }
    cout << arr[5] << ']' << endl; //换行
    
    //反转后
    cout << '['; //输出数组左端
    for (int i = 5; i > 0; i--) {
        cout << arr[i] << ", "; //输出数据
    }
    cout << arr[0] << ']' << endl; //换行

    return 0;
}