n: 40 m: 454 packed: 13 density: 0 nodes: 0 solveTime: 24150 buildTime: 120 solved: true
{0,1,7}
{2,6,9}
{3,19,21}
{4,5,8}
{11,26,34}
{12,18,22}
{13,15,27}
{14,28,30}
{16,29,36}
{17,24,32}
{20,25,33}
{23,35,39}
{31,37,38}