#include <iostream>

using namespace std;

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

    for(i=1; i<=n; i++)
          for(j=1; j<=n; j++)
          if(j<=n-i+1)
            a[i][j]=1;
        else
            a[i][j]=a[i][j-1]+1;


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


}