X1XX11X11XX22112
X1X21X1111112112
X12X1XX111112112
X12211111XX22112
X2XX1X111XX22112
X2X211X111112112
X22X111111112112
X2221XX11XX22112
21XX111111112112
21X21XX11XX22112
212X1X111XX22112
212211X111112112
22XX1XX111112112
22X211111XX22112
222X11X11XX22112
22221X1111112112
