1111X11211212121
1211XXXX11212121
1211211X11222121
X111XXX211112121
X1112X1X11122121
X21121X211122121
111121XXX1112121
11112XX2X1222121
1211XX12X1122121
X111X1XXX1222121
X211X11XX1112121
X2112X12X1212121
1111X1XX21122121
1111XX1X21212121
1211X1X221212121
12112X1221112121
X111211221122121
X11121XX21212121
X211XX1221222121
X2112XXX21122121
XX11X122211X1121
121X2X11XXX1X1M2
