n: 40 m: 219 packed: 13 density: 0 nodes: 0 solveTime: 670 buildTime: 30 solved: true
{0,21,35}
{1,13,29}
{2,23,28}
{3,7,31}
{4,37,38}
{5,16,25}
{6,8,14}
{9,12,26}
{10,11,36}
{15,19,22}
{17,20,34}
{24,30,32}
{27,33,39}