C2221232323213331311331333133313231333132313232313123232222213222331   >>    C222123232321333131133133313331323133313231323231312323222221322233   <<    C2221232323213331311331333133313231333132313232313123232222213222333   >>      C2221232323213331311331333133313231333132313232313123232222213222332   >>