n: 40 m: 329 packed: 13 density: 0 nodes: 0 solveTime: 4000 buildTime: 70 solved: true
{0,1,4}
{2,28,38}
{3,12,13}
{5,33,35}
{6,7,9}
{8,17,32}
{10,11,19}
{14,26,31}
{15,16,25}
{20,27,34}
{21,23,24}
{22,30,39}
{29,36,37}