C11112331312111112111133133313331333132323213331333133313121113331311321   >>    C1111233131211111211113313331333133313232321333133313331312111333131132   <<    C11112331312111112111133133313331333132323213331333133313121113331311323   >>      C11112331312111112111133133313331333132323213331333133313121113331311322   >>