n: 40 m: 470 packed: 13 density: 0 nodes: 0 solveTime: 11520 buildTime: 130 solved: true
{0,8,28}
{1,2,5}
{3,4,17}
{6,9,21}
{7,18,20}
{10,19,29}
{11,26,31}
{12,35,39}
{13,34,36}
{14,25,33}
{15,23,24}
{16,30,38}
{27,32,37}