1X1111X112X11X20
12X1X1X122111X20
121XX1112XX11X20
X1111121XX111X20
X1X1X111XX111X20
XX1X1111X2X11X20
XX1XX1211X111X20
XXX111212XX11X20
22XX11X112111X20
21XX11111XX11X20
2X1X112122111X20
2X11X1X1XXX11X20
2211X11112111X20
22XXX121X2X11X20
