11211X11121X1X12
2121X21XX2221X12
1121XX11X21X1X12
2121221X22221X12
1111211XXX211X12
11112112XXX21X12
1X111211X2211X12
1X11121XX2X21X12
1X111212X2211X12
1211XX11X1X11X12
1211XX11X1221X12
X1X111112X121112
X1XXX21X22X21X12
X1X1X1112XX21112
X1XX221X22221X12
