return [[ 0, 0, 0, 0 ],
[ 0, 0, 0, -3 ],
[ 0, 1, 0, 0 ],
[ 0, 1, 0, -3 ],
[ 0, 2, 0, 0 ],
[ 0, 2, 0, -3 ],
[ 0, 3, 0, 0 ],
[ 0, 6, 0, 0 ],
[ 3, 0, 0, 0 ],
[ 3, 1, 0, 0 ],
[ 3, 2, 0, -3 ],
[ 3, 3, 0, 0 ],
[ 3, 6, 0, 0 ],
[ 6, 0, 0, 0 ],
[ 6, 3, 0, 0 ],
[ 6, 6, 0, 0 ]];;