#include<stdio.h>
FILE *in=fopen("tablete.in","rt");
FILE *out=fopen("tablete.out","wt");
long int nr,a[1001][1001];
int n,k;
void afisare()
{
  int i,j;
  for(i=1;i<=n;i++)
  {
    for(j=1;j<=n;j++)
    {
      fprintf(out,"%ld ",a[i][j]);
      nr++;
    }
    fprintf(out,"\n");
  }
}
int main()
{


  int i,j;
  fscanf(in,"%d",&n);
  fscanf(in,"%d",&k);
  nr=1;
  for(i=1;i<=n;i++)
  {
    for(j=1;j<=n;j++)
    {
      a[i][j]=nr;
      nr++;
    }
    fprintf(out,"\n");
  }
  afisare();
  return 0;
}