n: 40 m: 562 packed: 13 density: 0 nodes: 0 solveTime: 42450 buildTime: 190 solved: true
{0,3,4}
{1,2,17}
{5,6,36}
{7,12,20}
{8,28,31}
{9,25,32}
{10,34,39}
{11,21,30}
{13,18,23}
{14,19,38}
{15,22,35}
{16,24,27}
{29,33,37}