#include <iostream>
#include <vector>
#include <ctime>

using namespace std;

void print(vector<vector<int> > arr, int col)
{
    for (int i = 0; i < arr[col].size(); i++)
    {
        cout << arr[col][i] << ' ';
    }
    cout << endl;
}

void print_reverse(vector<vector<int> > arr, int col)
{
    for (int i = arr[col].size() - 1; i >= 0; --i)
    {
        cout << arr[col][i] << ' ';
    }
    cout << endl;
}

int main()
{
    srand(time(0));
    int row, col;

    cin >> row >> col;

    vector<vector<int> > arr(row);

    for(size_t i = 0; i < row; ++i)
    {
        arr[i].resize(col);
        for(size_t j = 0; j < col; ++j)
            arr[i][j] = rand() % 100;
    }

    print(arr, 0);

    print_reverse(arr, 0);

    return 0;
}