#include <fstream>
using namespace std;
ifstream fin("tablete.in");
ofstream fout("tablete.out");
int main(){
    int n,k,a[100][100],p=2,c=1,i,j;
    fin>>n>>k;
    for(i=1;i<=n;i++)
        for(j=1;j<=n;j++){
        a[i][j]=c;
        c++;
    }

    for(i=1;i<=n;i++){
        for(j=1;j<=n;j++)
            fout<<a[i][j]<<" ";
        fout<<"\n";
    }

    return 0;
}