n: 40 m: 395 packed: 13 density: 0 nodes: 0 solveTime: 8500 buildTime: 100 solved: true
{0,4,16}
{1,19,31}
{2,5,26}
{3,15,38}
{6,7,39}
{8,10,17}
{11,24,30}
{12,13,35}
{14,33,37}
{18,25,29}
{20,22,28}
{21,32,36}
{23,27,34}