C11112331312111112111133133313331333133313331333133313331323131323233231   >>    C1111233131211111211113313331333133313331333133313331333132313132323323   <<    C11112331312111112111133133313331333133313331333133313331323131323233233   >>      C11112331312111112111133133313331333133313331333133313331323131323233232   >>