1X11X2X1X1222212
X111XX22121X2212
1121X12XX2X21212
2X1X1X2112X12212
21X211X12X22X112
111XX2XX22221112
X1211X212X12XX12
211XX1112XX22X12
11X1222X22X1X112
21111XX2X122XX12
2X1122X1221XX112
21XXXX2121121112
