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  [ -1, 0,-1, 0, 0, 0,0,0, 0, 0 ],
  [  1,-1, 0, 0, 0, 0,0,0, 0, 0 ],
  [  1, 0, 0, 0, 0, 0,0,0, 0, 0 ],
  [  0,-1, 0, 0, 0, 1,1,0, 0, 0 ],
  [  0, 1, 0, 0, 0, 0,0,0, 0, 0 ],
  [  0, 1,-1, 0, 0, 0,0,0, 0, 0 ],
  [  0, 0,-1, 0, 0, 0,0,0, 0, 0 ],
  [  0, 0, 1, 0, 0, 0,0,0, 0, 0 ],
  [  0, 0, 1, 0, 0, 0,0,0, 0, 0 ],
  [  0, 0, 1, 0,-1, 0,0,0, 0, 0 ],
  [  0, 0, 0,-1, 0, 0,0,0, 0, 0 ],
  [  0, 0, 0, 1, 0, 0,0,0, 0, 0 ],
  [  0, 0, 0, 0, 1, 0,0,0, 0, 0 ],
  [  0, 0, 0, 0,-1, 0,0,0, 0, 0 ],
  [  0, 0, 0,-1, 1, 0,0,0,-1, 0 ],
  [  0, 0, 0, 1, 0,-1,0,0, 0,-1 ] ]