n: 40 m: 671 packed: 13 density: 0 nodes: 0 solveTime: 123500 buildTime: 260 solved: true
{0,10,38}
{1,6,11}
{2,3,5}
{4,25,29}
{7,9,19}
{8,12,39}
{13,34,37}
{14,17,36}
{15,16,30}
{18,22,23}
{20,27,31}
{21,24,35}
{26,28,32}