#include<stdio.h>
int n,k,i,j,l,t;
int main() {
    freopen("tablete.in","r",stdin),freopen("tablete.out","w",stdout),scanf("%d%d",&n,&k);
    if(k%2==0)
        for(i=1,l=n*k;i<=n;i++,l+=n-k) {
            for(j=1;j<=k;j++)
                printf("%d ",(i-1)*k+j);
            for(j=k+1;j<=n;j++)
                printf("%d ",l+j-k);
            printf("\n");
        }
    if(k%2&&n%2==0)
        for(i=1,l=n*k;i<=n;i++,l+=n-k)
        if(i%2) {
            for(j=1;j<k;j++)
                printf("%d ",(i-1)*k+j);
            printf("%d ",i*k+1);
            for(j=k+1;j<=n;j++)
                printf("%d ",l+j-k);
            printf("\n");
        }
        else {
            printf("%d ",k*(i-1));
            for(j=2;j<=k;j++)
                printf("%d ",k*(i-1)+j);
            for(j=k+1;j<=n;j++)
                printf("%d ",l+j-k);
            printf("\n");
        }
    if(k%2&&n%2) {
        for(i=1,l=n*k;i<n;i++,l+=n-k)
        if(i%2) {
            for(j=1;j<k;j++)
                printf("%d ",(i-1)*k+j);
            printf("%d ",i*k+1);
            for(j=k+1;j<=n;j++)
            if(i==1&&j==k+1)
                printf("%d ",n*k);
            else
                printf("%d ",l+j-k);
            printf("\n");
        }
        else {
            printf("%d ",k*(i-1));
            for(j=2;j<=k;j++)
                printf("%d ",k*(i-1)+j);
            for(j=k+1;j<=n;j++)
                printf("%d ",l+j-k);
            printf("\n");
        }
        for(i=1;i<k;i++)
            printf("%d ",(n-1)*k+i);
        printf("%d ",n*k+1);
        for(i=k+1;i<=n;i++)
            printf("%d ",l+i-k);
        printf("\n");
    }
}