#include <iostream>

using namespace std;

int main()
{
    int a[26][26], i, j, n, x;
    cin>>n>>x;

    for(i=1; i<=n; i++)
          for(j=1; j<=n; j++)
            if(i%2==0)
                a[i][j]=x%10;
            else
                a[i][j]=x/10;


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


}