n: 40 m: 448 packed: 13 density: 0 nodes: 0 solveTime: 14550 buildTime: 110 solved: true
{0,1,22}
{2,4,5}
{3,18,28}
{6,11,30}
{7,13,16}
{8,9,31}
{10,15,39}
{14,29,34}
{17,25,26}
{19,23,33}
{20,21,35}
{24,32,38}
{27,36,37}