11X211112111X121
2122XX111XX12X21
X1122211X2211221
X112111X22122121
1XX21X212X11X121
X11212211XX21121
X11222X1112XX121
1112X1X12X1X1221
11X2X121XX12X221
11XX11X1X1212X21
11XX1X2111122221
1121X121X11X2221
1X121111XXX12121
21XX12X12X1XX121
