#include<fstream>
using namespace std;


int main(){
 ifstream in("tablete.in");
 ofstream out("tablete.out");
 long long n,k,i,j;
 in>>n;
 in>>k;
 if(k%2==0){
                    for(i=1;i<=n;i++){
                     for(j=1;j<n;j++) out<<n*(i-1)+j<<" ";
                     out<<n*(i-1)+j<<endl;
                     }              
                    
                    }
 else {    for(i=1;i<=n;i++){
                 if(i==1){
                            for(j=1;j<k;j++) out<<n*(i-1)+j<<" ";
                            for(j=k;j<n;j++) out<<n*(i-1)+j+1<<" ";
                                                       
                            out<<n*(i-1)+j+1<<endl;
                            }
                 else{
                            out<<n*(i-2)+k<<" ";
                            for(j=2;j<n;j++) out<<n*(i-1)+j<<" ";
                            out<<n*(i-1)+j<<endl;           
                            }
      
      
      
      }
              
                       
                       
      
      
      
                    
                    
                    
                    }                   
 
 
 
    
    
    
 return 0;   
}