n: 40 m: 597 packed: 13 density: 0 nodes: 0 solveTime: 22820 buildTime: 220 solved: true
{0,10,13}
{1,28,35}
{2,11,16}
{3,5,27}
{4,7,12}
{6,8,38}
{9,18,19}
{14,17,20}
{15,36,39}
{21,31,37}
{22,24,30}
{23,26,32}
{25,29,34}