C2221232323213331311331333133313231333132313331333233113222313132231111   >>    C222123232321333131133133313331323133313231333133323311322231313223111   <<    C2221232323213331311331333133313231333132313331333233113222313132231113   >>      C2221232323213331311331333133313231333132313331333233113222313132231112   >>