111121112121X121
11112X112X212121
1X11211X21212121
1X112X1X2X21X121
X111211X2X21X121
X1112X1X21212121
XX1121112X212121
XX112X112121X121
11X1211X2X212121
11X12X1X2121X121
1XX121112X21X121
1XX12X1121212121
X1X1211121212121
X1X12X112X21X121
XXX1211X2121X121
XXX12X1X2X212121
1121211X2X212121
11212X1X2121X121
1X2121112X21X121
1X212X1121212121
X121211121212121
X1212X112X21X121
XX21211X2121X121
XX212X1X2X212121
