# include <fstream>
using namespace std;

ifstream f ("tablete.in");
ofstream g ("tablete.out");

int n, k;
int a[1001][1001];

void p1 ()
{
    int nr = 0;
    if (k % 2 == 0)
    {
        for (int i = 1; i <= n; ++i)
            for (int j = 1; j <= k; ++j)
                a[i][j] = ++nr;
    }
    for (int i = 1; i <= n; ++i)
        for (int j = k + 1; j <= n; ++j)
            a[i][j] = ++nr;
}

void p2 ();
void p3 ();
int main ()
{
    f >> n >> k;
    p1 ();// p2 (); p3 ();
    for (int i = 1; i <= n; ++i, g << '\n')
        for (int j = 1; j <= n; ++j)
            g << a[i][j] << ' ';

    g.close ();
    return 0;
}