D 2 x 6

D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6
D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6
D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6D 2 x 6