C2221333133313331311233132313331333133313232123313331323223313112111   >>    C222133313331333131123313231333133313331323212331333132322331311211   <<    C2221333133313331311233132313331333133313232123313331323223313112113   >>      C2221333133313331311233132313331333133313232123313331323223313112112   >>