21121X11X1221110
1112X21X11221110
2X1211X1112X1110
11X2X1X1X12X1110
12122XX211221110
XX1212XX11221121
X112XX2111221121
2212X22211221110
X112X111X12X1111
1X12X1XXX1221111
221211X2X1221110
1112112121221110
X112X1X221221111
2212X11121221121
