C11112331312111112111133133313331333132311211332123313331322121211211   >>    C1111233131211111211113313331333133313231121133212331333132212121121   <<    C11112331312111112111133133313331333132311211332123313331322121211213   >>      C11112331312111112111133133313331333132311211332123313331322121211212   >>