n: 30 m: 240 packed: 10 density: 0 nodes: 0 solveTime: 1500 buildTime: 40 solved: true
{0,4,21}
{1,3,8}
{2,11,20}
{5,13,26}
{6,7,25}
{9,19,27}
{10,24,29}
{12,15,18}
{14,22,23}
{16,17,28}