n: 50 m: 280 packed: 16 density: 0 nodes: 0 solveTime: 3900 buildTime: 50 solved: true
{0,20,23}
{1,14,45}
{2,28,35}
{3,9,36}
{4,19,47}
{5,26,32}
{6,13,42}
{7,27,34}
{8,11,44}
{10,30,40}
{12,18,48}
{15,31,37}
{16,22,41}
{17,24,25}
{21,33,49}
{38,39,43}