n: 40 m: 555 packed: 13 density: 0 nodes: 0 solveTime: 45070 buildTime: 180 solved: true
{0,1,13}
{2,24,28}
{3,21,22}
{4,27,32}
{6,10,38}
{7,9,19}
{8,12,33}
{11,25,31}
{14,15,29}
{16,17,20}
{18,34,36}
{23,30,35}
{26,37,39}