n: 50 m: 272 packed: 16 density: 0 nodes: 0 solveTime: 19000 buildTime: 50 solved: true
{0,19,21}
{1,12,26}
{2,10,24}
{3,17,42}
{4,38,48}
{5,8,22}
{6,35,37}
{7,25,34}
{9,15,23}
{11,14,45}
{13,31,47}
{18,27,43}
{28,29,33}
{30,40,44}
{32,36,46}
{39,41,49}