n: 40 m: 627 packed: 13 density: 0 nodes: 0 solveTime: 17150 buildTime: 240 solved: true
{0,1,23}
{2,3,5}
{6,16,31}
{7,20,26}
{8,24,32}
{9,34,35}
{10,17,22}
{11,21,28}
{12,33,37}
{13,18,29}
{14,27,30}
{15,38,39}
{19,25,36}