C1311213331333132332133313331333133313331333131133133312111112321311   >>    C131121333133313233213331333133313331333133313113313331211111232131   <<    C1311213331333132332133313331333133313331333131133133312111112321313   >>      C1311213331333132332133313331333133313331333131133133312111112321312   >>