#include<fstream>
using namespace std;
ifstream f("tablete.in"); ofstream g("tablete.out");
int n, k, i, j, w, a[1001][1001], y;
int main(){
	f>>n>>k;
	w=1;
	y=n*k+1;
	if(k%2==0)
		for(i=1; i<=n; ++i)
			{
			 for(j=1; j<=n; ++j)
				{
				 if(j<=k) {a[i][j]=w; ++w;}
					else {a[i][j]=y; y++;}
				 g<<a[i][j]<<' ';
				}
			 g<<'\n';
			}
	
		else
			for(i=1; i<=n; ++i)
				{
				 for(j=1; j<=n; ++j)
					{
					 if(j<=k)
							if(i%2==1 && j==k) {a[i][j]=w+1; ++w;}
								else if(a[i-1][k]==w && i%2==0) {a[i][j]=w-1; ++w;}
									else {a[i][j]=w; ++w;}
						
						else if(n%2==1 && i==1 && j==k+1) {a[i][j]=y-1; ++y;}
								else {a[i][j]=y; ++y;}
					 g<<a[i][j]<<' ';
					}
				 g<<'\n';
				}
	
	return 0;
}