C2221232323213331311331333133313331323132313331333223312232313233111221   >>    C222123232321333131133133313331333132313231333133322331223231323311122   <<    C2221232323213331311331333133313331323132313331333223312232313233111223   >>      C2221232323213331311331333133313331323132313331333223312232313233111222   >>