[ [ 1,1,-1,0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ],
  [ 0,0, 0,0, 0, 0, 0, 0, 0, 1, 0,-1, 0, 0, 1, 1, 1 ],
  [ 0,0, 0,1,-1,-2, 2,-1,-1, 0, 0, 0, 0, 0, 0, 0, 0 ],
  [ 0,0, 0,0, 0, 1,-1, 0, 0, 1,-1,-1,-1,-1, 0, 0, 0 ],
  [ 0,0, 0,0, 0, 0, 0, 0, 0,-1, 0, 1, 0, 0,-1,-1,-1 ],
  [ 0,0, 0,0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] ]