n: 40 m: 719 packed: 13 density: 0 nodes: 0 solveTime: 69790 buildTime: 310 solved: true
{0,5,8}
{1,10,15}
{2,3,14}
{4,35,39}
{6,16,22}
{7,13,17}
{9,11,38}
{12,18,32}
{19,21,28}
{20,33,37}
{23,26,30}
{24,25,36}
{27,29,34}