C222123232321333131133133313331323133313231323133311322121132121121   >>    C22212323232133313113313331333132313331323132313331132212113212112   <<    C222123232321333131133133313331323133313231323133311322121132121123   >>      C222123232321333131133133313331323133313231323133311322121132121122   >>