C11112331312111112111133133313331333132311211332123313331322233231   >>    C1111233131211111211113313331333133313231121133212331333132223323   <<    C11112331312111112111133133313331333132311211332123313331322233233   >>      C11112331312111112111133133313331333132311211332123313331322233232   >>