1X21211XXXX11X11
1X2X2111X2111X12
12212111XXXXX221
XX212111XXX11X22
XX2X211XX21XX2M1
X22X211XX2111XM2
X22X211XX21XX211
XX212111X2211X00
XX2121XX22111101
XX21211212X11202
1X2121212X111211
X22121112111XX12
212121X122111221
2X2121212X11XX22
