C2221232323213331311331333133313231333132313331333233113222322212231   >>    C222123232321333131133133313331323133313231333133323311322232221223   <<    C2221232323213331311331333133313231333132313331333233113222322212233   >>      C2221232323213331311331333133313231333132313331333233113222322212232   >>