12X1X11122X11212
1221X11122X11212
12XXX11122X11212
122XX11122X11212
12X1X11122X21212
1221X11122X21212
12XXX11122X21212
122XX11122X21212
12X1X11122X12212
1221X11122X12212
12XXX11122X12212
122XX11122X12212
12X1X11122X22212
1221X11122X22212
12XXX11122X22212
122XX11122X22212
