return 
[ [ [ 2, 3, 4, 5 ], [ 1, 6, 7, 8 ], [ 1, 8, 9, 17 ], [ 1, 17, 11, 12 ], 
      [ 1, 12, 13, 6 ], [ 15, 15, 2, 5 ], [ 16, 16, 2, 15 ], [ 2, 16, 14, 3 ],
      [ 3, 14, 11, 10 ], [ 17, 17, 9, 11 ], [ 4, 10, 9, 12 ], 
      [ 4, 11, 14, 5 ], [ 5, 14, 16, 15 ], [ 8, 13, 12, 9 ], [ 6, 6, 13, 7 ], 
      [ 7, 7, 13, 8 ], [ 10, 10, 4, 3 ] ], 
  [ [ 2, 3, 4, 5 ], [ 15, 15, 1, 6 ], [ 1, 15, 8, 9 ], [ 16, 16, 1, 9 ], 
      [ 1, 16, 11, 6 ], [ 2, 5, 12, 7 ], [ 15, 6, 17, 8 ], [ 3, 7, 13, 14 ], 
      [ 3, 14, 10, 4 ], [ 16, 9, 14, 11 ], [ 5, 10, 13, 12 ], 
      [ 17, 17, 6, 11 ], [ 8, 17, 11, 14 ], [ 8, 13, 10, 9 ], [ 2, 2, 7, 3 ], 
      [ 4, 4, 10, 5 ], [ 12, 12, 13, 7 ] ], 
  [ [ 2, 3, 4, 14 ], [ 1, 15, 6, 7 ], [ 1, 7, 8, 16 ], [ 1, 16, 10, 5 ], 
      [ 15, 14, 4, 6 ], [ 2, 5, 10, 11 ], [ 2, 11, 17, 3 ], [ 3, 17, 13, 9 ], 
      [ 16, 16, 8, 10 ], [ 4, 9, 13, 6 ], [ 6, 13, 12, 7 ], 
      [ 17, 17, 11, 13 ], [ 8, 12, 11, 10 ], [ 15, 15, 1, 5 ], 
      [ 14, 14, 5, 2 ], [ 9, 9, 4, 3 ], [ 12, 12, 8, 7 ] ], 
  [ [ 2, 3, 4, 16 ], [ 1, 6, 7, 8 ], [ 15, 15, 1, 8 ], [ 1, 15, 10, 5 ], 
      [ 16, 16, 4, 11 ], [ 2, 16, 11, 17 ], [ 2, 17, 13, 14 ], 
      [ 2, 14, 9, 3 ], [ 15, 8, 14, 10 ], [ 4, 9, 13, 11 ], [ 5, 10, 12, 6 ], 
      [ 17, 17, 11, 13 ], [ 7, 12, 10, 14 ], [ 7, 13, 9, 8 ], [ 3, 3, 9, 4 ], 
      [ 5, 5, 6, 1 ], [ 12, 12, 7, 6 ] ], 
  [ [ 15, 15, 3, 4 ], [ 15, 6, 7, 3 ], [ 1, 2, 8, 9 ], [ 1, 9, 10, 5 ], 
      [ 15, 4, 11, 6 ], [ 2, 5, 12, 7 ], [ 2, 6, 16, 8 ], [ 3, 7, 13, 17 ], 
      [ 3, 17, 10, 4 ], [ 4, 9, 14, 11 ], [ 5, 10, 13, 12 ], 
      [ 16, 16, 6, 11 ], [ 8, 16, 11, 14 ], [ 17, 17, 13, 10 ], 
      [ 1, 1, 5, 2 ], [ 12, 12, 13, 7 ], [ 14, 14, 9, 8 ] ], 
  [ [ 17, 17, 3, 4 ], [ 17, 17, 4, 3 ], [ 1, 2, 5, 6 ], [ 2, 1, 6, 5 ], 
      [ 3, 4, 7, 8 ], [ 4, 3, 8, 7 ], [ 5, 6, 9, 10 ], [ 6, 5, 10, 9 ], 
      [ 7, 8, 11, 12 ], [ 8, 7, 12, 11 ], [ 9, 10, 13, 14 ], 
      [ 10, 9, 14, 13 ], [ 11, 12, 15, 16 ], [ 12, 11, 16, 15 ], 
      [ 13, 14, 16, 16 ], [ 14, 13, 15, 15 ], [ 1, 1, 2, 2 ] ] ];
