n: 40 m: 140 packed: 13 density: 0 nodes: 0 solveTime: 160 buildTime: 20 solved: true
{0,19,24}
{1,38,39}
{2,14,23}
{3,25,33}
{4,21,22}
{5,9,13}
{6,26,28}
{7,10,35}
{11,15,17}
{12,20,29}
{16,27,34}
{18,30,37}
{31,32,36}