C11112331312111112111133133313331333132323133313331333133313112111312331   >>    C1111233131211111211113313331333133313232313331333133313331311211131233   <<    C11112331312111112111133133313331333132323133313331333133313112111312333   >>      C11112331312111112111133133313331333132323133313331333133313112111312332   >>