#include<fstream.h>
 void main()
 { int i,j,n,a[25][25];
  cin>>n;
  for(i=1;i<=n;i++)
   for(j=1;j<=i;j++)
    {a[i][j]=i;
     a[j][i]=i;
     }
  for(i=1;i<=n;i++)
   {cout<<endl;
    for(j=1;j<=n;j++)
    cout<<a[i][j]<<" ";
   }
}