C2221232323213331311331333133313331323132313331333223312232311212131221   >>    C222123232321333131133133313331333132313231333133322331223231121213122   <<    C2221232323213331311331333133313331323132313331333223312232311212131223   >>      C2221232323213331311331333133313331323132313331333223312232311212131222   >>