#include<fstream.h>
int main()
{int nr=1,j,m[1001][1001],n,k,i;
ifstream q("tablete.in");
ofstream w("tablete.out");
q>>n>>k;
if(k%2==0)
{nr=1;
for(i=1;i<=n;i++)
  for(j=1;j<=k;j++)
    {m[i][j]=nr;
    nr++;}
for(i=1;i<=n;i++)
  for(j=k+1;j<=n;j++)
    {m[i][j]=nr;
    nr++;}
for(i=1;i<=n;i++)
  {w<<"\n";
  for(j=1;j<=n;j++)
    w<<m[i][j]<<" ";}}
int poz=1;
if(k%2!=0)
  {nr=1;
  for(i=1;i<=n;i++)
    for(j=1;j<=k;j++)
      {if(poz==0)
       {poz=1;
       j++;}
      m[i][j]=nr;
      if(j==k&&nr%2!=0)
       {m[i+1][1]=m[i][k];
       m[i][k]=nr+1;
       nr++;
       poz=0;}
      nr++;}
  nr--;
  for(i=1;i<=n;i++)
    for(j=k+1;j<=n;j++)
      {m[i][j]=nr;
      nr++;}
  for(i=1;i<=n;i++)
  {w<<"\n";
  for(j=1;j<=n;j++)
    w<<m[i][j]<<" ";}}
return 0;}