/ (3,-3) / (3,0) / (-3,0) / (0,3) / (-3,0) /
/ (3,3) / (3,0) / (3,3) / (3,0) / (3,3) /
或者是
/ (-3,0) / (3,3) / (0,-3) / 6,0/ (-3,0) / (3,3) / (0,-3) /
/ (3,-3) / (0,3) / (-3,0) / (3,0) / (-3,0) /
/ (3,3) / (0,3) / (3,3) / (0,3) / (3,3) /
|
/ (0,3) / (0,-3) / (0,3) / (0,-3) /
/ (3,0) / (-3,0) / (3,0) / (-3,0) /
/ (3,-3) / (3,-3) /