#include <iostream>
using namespace std;

int N, K;
int main(void) {
	cin >> N >> K;
	if(K == 0) {
		cout << -1 << endl;
		return 0;
	}
	for(int i = 0;i < N * N;i++) {
		int num = (i < K ? N * N - K + i + 1 : i - K + 1);
		cout << num << " \n"[i % N == N - 1];
	}
	return 0;
}