n: 40 m: 550 packed: 13 density: 0 nodes: 0 solveTime: 18360 buildTime: 180 solved: true
{0,4,6}
{1,5,35}
{2,3,7}
{8,12,16}
{10,23,38}
{11,19,39}
{13,24,26}
{14,27,29}
{15,31,33}
{17,20,25}
{18,28,30}
{21,22,34}
{32,36,37}