return [[ 0, 0, 0, 0, 0 ],
[ 0, 0, 4, 12, 0 ],
[ 0, 0, 8, 8, 0 ],
[ 0, 0, 12, 4, 0 ],
[ 4, 4, 1, 3, 0 ],
[ 4, 4, 5, 15, 0 ],
[ 8, 8, 2, 6, 0 ],
[ 8, 8, 6, 2, 0 ],
[ 8, 8, 10, 14, 0 ],
[ 8, 8, 14, 10, 0 ],
[ 12, 12, 3, 9, 0 ],
[ 12, 12, 7, 5, 0 ]];;