X1211121X1XX1121
11X11X1111211121
11X112X111111121
X121X111X11X1121
11X1XXX111X11121
X121XXX1X1XX1121
X121X221X12X1121
11X121X111211121
11X12X2111111121
X1212211X1XX1121
2121X22111X21XM0
21X212211XX111M0
11222111XX1111M1
21221111X1211121
