C1311213331333132332133313331333133313331333132313331311222232311   >>    C131121333133313233213331333133313331333133313231333131122223231   <<    C1311213331333132332133313331333133313331333132313331311222232313   >>      C1311213331333132332133313331333133313331333132313331311222232312   >>