n: 30 m: 321 packed: 10 density: 0 nodes: 0 solveTime: 4990 buildTime: 70 solved: true
{0,8,19}
{1,3,11}
{2,4,6}
{5,15,22}
{7,13,29}
{9,10,20}
{12,17,24}
{14,21,26}
{16,27,28}
{18,23,25}