#include<stdio.h>
char vc[1000005];
int a[1005][1005];
int main(){
    freopen("tablete.in","r",stdin);
    freopen("tablete.out","w",stdout);
    int n,k,i,s,j;
    scanf("%d%d",&n,&k);
    if(k%2==0){
        for(i=1,s=0;i<=n;i++)
            for(j=1;j<=k;j++){
                a[i][j]=++s;
                vc[s]=1;
    }
    }
    if(k%2==1){
        for(i=1;i<=n;i++)
            for(j=2;j<=k-1;j++){
                a[i][j]=(i-1)*k+j;
                vc[(i-1)*k+j]=1;
            }
        for(i=1;i<=n;i++){
            if(i%2==1){
                a[i][1]=(i-1)*k+1;
                a[i][k]=k*i+1;
            }
            else{
                a[i][1]=k*(i-1);
                a[i][k]=k*i;
            }
            vc[a[i][1]]=1;
            vc[a[i][k]]=1;
        }
        if(n%2==1){
            for(j=1;j<=k;j++){
                a[n][j]=(n-1)*k+j;
                vc[a[n][j]]=1;
            }
            a[1][k+1]=n*k;
            vc[n*k]=1;
        }
    }
    int w=1;
    for(i=1;i<=n;i++)
        for(j=k+1;j<=n;j++){
            while(vc[w]==1)
                w++;
            a[i][j]=w;
            vc[w]=1;
        }
    for(i=1;i<=n;i++){
        for(j=1;j<=n;j++)
            printf("%d ",a[i][j]);
        printf("\n");
    }
    return 0;
}