XX111X2X1X11X222
XX11111X1111XX22
X111X1X11111XX22
X1112121111XXX22
X11122X111111222
X2112X211211X122
1X1112X21X12X122
1X112XXX12111122
1111X11X12122122
1111122X1X11XX22
2X11X12X1X111122
2X11X2X11111XX22
2X11222X12111X22
2111XXXX121XXX22
2111X21X1212XX22
21112X1X11122222
2211X2X11X112X22
22112XXX1X1X2X22
