2121XX1XXX21XX10
X1X2X11X2X1X2101
112X221X1XX1X210
22222X121X1XX112
X221121112112221
222XXX1222111X10
11XXXX121X112100
212122X22X112111
22XXX21X21X1X112
211211X212X11111
1X221X122XX12X11
22221X11X1112120
2X2221111X1X2111
112X1211X2X1X220
