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