1X11XX1112XX1220
1X1122X12X111X20
1XX1X2X11XXX1X20
1XX12X1122111220
1211X211221X1X20
12112XX11XX11220
12X1XXX12X1X1220
12X1221112X11X20
XX11XXX122X11X20
XX1122111X1X1220
XXX1X2112XX11220
XXX12XX1121X1X20
X211X2X112111220
X2112X112XXX1X20
X2X1XX111X111X20
X2X122X122XX1220
