n: 30 m: 381 packed: 10 density: 0 nodes: 0 solveTime: 12640 buildTime: 90 solved: true
{0,2,7}
{1,4,9}
{3,8,15}
{5,13,29}
{6,18,26}
{10,22,28}
{11,12,16}
{14,23,27}
{17,19,24}
{20,21,25}