return [[ 0, 0, 0, 0 ],
[ 0, 0, 0, 4 ],
[ 0, 0, 0, 8 ],
[ 13, 0, 0, 0 ],
[ 13, 0, 0, 4 ],
[ 13, 0, 0, 8 ],
[ 26, 0, 0, 0 ],
[ 26, 0, 0, 4 ],
[ 26, 0, 0, 8 ],
[ 39, 0, 0, 0 ],
[ 39, 0, 0, 4 ],
[ 39, 0, 0, 8 ]];;