1211211122221X11
1211211X2XXX1X11
121X111X22221X11
1221111X22221X11
122X11112XXX1X12
122X211X22221X12
X21111112XXX1X12
X211211X22221X1M
X21X21112XXX1X1M
X22121112XXX1X1M
X22X111122221X11
X22X111X2XXX1X12
