C222123232321333131133133313331323133313231323133311322123112111   >>    C22212323232133313113313331333132313331323132313331132212311211   <<    C222123232321333131133133313331323133313231323133311322123112113   >>      C222123232321333131133133313331323133313231323133311322123112112   >>