#include <stdio.h>

 int
main ()
{
    int n, i, j;
    scanf ("%d", &n);
    if ((n<1)||(n>9)) printf ("N is wrong: %d", n);
    else
    {
        for (i = 1; i <= n; i++)
        {
        for (j = 1; j <= i; j++)
            printf ("%d ", j);
         printf ("\n");
        }
    }
  return 0;
}