2121211212112X21
X12X1XX12111X200
X2X212111121X111
12111212X1112120
X121X2121111X212
212112111X1X2100
21X1212X11112100
21X11X211X111220
X122XX12X1111220
2111211X111X2100
11X121121XXXX102
X12XX1122XX11112
