C1311213331333132332133313331333133313331333132313232213231322331   >>    C131121333133313233213331333133313331333133313231323221323132233   <<    C1311213331333132332133313331333133313331333132313232213231322333   >>      C1311213331333132332133313331333133313331333132313232213231322332   >>