X111XX2121211X11
X1112X21212X1211
X11XXX2X21211211
X11X2X2X212X1X11
2111XX2X212X1X11
21112X2X21211211
211XXX21212X1211
211X2X2121211X11
X1X1XX2X212X1211
X1X12X2X21211X11
X1XXXX21212X1X11
X1XX2X2121211211
21X1XX2121211211
21X12X21212X1X11
21XXXX2X21211X11
21XX2X2X212X1211
X121XX2X212X1211
X1212X2X21211X11
X12XXX21212X1X11
X12X2X2121211211
2121XX2121211211
21212X21212X1X11
212XXX2X21211X11
212X2X2X212X1211
