2111XX1112112121
2XX122XX12112121
22212X2212112121
2221X2221211X121
XX11X21112112121
21X12XXX1211X121
X2X12XXX12112121
2X11121112112121
X121X22212112121
2X112X111211X121
21X1XX1112112121
2X2122XX12112121
22112X2212112121
2211X2221211X121
XXX1X21112112121
21212XXX1211X121
XX11X211X21X2100
1X211X1X12XX212M
