---TOP---
   1       1    0
   2       4  999
   3       9  999
   4      16  999
   5      25  999
   6      36  999
   7      49  999
   8      64  999
   9      81  999
  10     100  999
  11     121  999
  12     144  999
  13     169  999
  14     196  999
  15     225  999