n: 30 m: 406 packed: 10 density: 0 nodes: 0 solveTime: 12670 buildTime: 90 solved: true
{0,1,18}
{2,21,26}
{3,6,8}
{4,16,24}
{5,9,15}
{7,28,29}
{10,11,12}
{13,19,22}
{14,20,23}
{17,25,27}