n: 40 m: 428 packed: 13 density: 0 nodes: 0 solveTime: 33420 buildTime: 100 solved: true
{0,4,10}
{1,22,25}
{2,5,20}
{3,17,31}
{6,12,27}
{8,19,26}
{9,24,38}
{11,13,29}
{14,30,32}
{15,36,39}
{16,18,35}
{21,23,33}
{28,34,37}