X12X1211211X12M1
2121X211XX1212M1
X12XX211XX2X11M1
21211211212211M1
X12XX2X1X1X212M1
212112X12XXX12M1
X12112X1XX221XM1
212XX2X1212X1XM1
X12XX2212X121XM1
21211221X11X1XM1
X121X22121XX11M1
212X1221XXX211M1
