#include <fstream>
#include <string.h>

using namespace std;

ifstream cin("tableta.in");
ofstream cout("tableta.out");

int main() {
	int N, K;
	cin >> N >> K;
	if (K % 2 == 0) {
		for (int i = 1; i <= N * N; ++i) {
			cout << i << " ";
			if (i % N == 0)
				cout << "\n";
		}
	}
	else {
		for (int i = 2; i <= N * N; ++i) {
			cout << i << " ";
			if ((i - 1) % N == 0)
				cout << "\n";
		}
		cout << 1;
	}
	return 0;
}