#include <iostream>

using namespace std;

int a[1001][1001];
int main()
{
    int n,k,p;
    cin>>n>>k;
    if(k%2==1) p=2;
    else p=1;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++){
            a[i][j]=p++;
        }
    }
    if(k%2==1) a[n][n]=1,swap(a[n][1],a[n][n]);
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++){
            cout<<a[i][j]<<" ";
        }
        cout<<endl;
    }
    return 0;
}