C11112331312111112111133133313331333132323133313331311212111133133313223322321   >>    C1111233131211111211113313331333133313232313331333131121211113313331322332232   <<    C11112331312111112111133133313331333132323133313331311212111133133313223322323   >>      C11112331312111112111133133313331333132323133313331311212111133133313223322322   >>