n: 40 m: 942 packed: 13 density: 0 nodes: 0 solveTime: 301220 buildTime: 510 solved: true
{0,21,37}
{1,2,5}
{3,6,13}
{4,9,39}
{8,35,38}
{10,16,19}
{11,24,32}
{12,26,30}
{14,25,36}
{15,18,27}
{17,28,31}
{20,23,33}
{22,29,34}