n: 40 m: 500 packed: 13 density: 0 nodes: 0 solveTime: 20640 buildTime: 150 solved: true
{0,9,20}
{1,30,34}
{2,17,39}
{3,10,24}
{4,33,38}
{5,6,26}
{7,12,19}
{8,11,15}
{13,25,37}
{14,22,32}
{16,23,29}
{18,21,27}
{28,31,35}