C11112331312111112111133133313331333133313112113313331333133313132323221   >>    C1111233131211111211113313331333133313331311211331333133313331313232322   <<    C11112331312111112111133133313331333133313112113313331333133313132323223   >>      C11112331312111112111133133313331333133313112113313331333133313132323222   >>