X11X122X11121X22
2X12122X11121X22
211XX22211121X22
XX12X22211121X22
XX1XX22X12121X22
2112X22X12121X22
2X1X122212121X22
X112122212121X22
2X1XX22X11221X22
X112X22X11221X22
XX1X122211221X22
2112122211221X22
211X122X12221X22
XX12122X12221X22
X11XX22212221X22
2X12X22212221X22
211X122X11121X22
XX12122X11121X22
X11XX22211121X22
2X12X22211121X22
