C11112331312111112111133133313331333133313331333133313231333132323211   >>    C1111233131211111211113313331333133313331333133313331323133313232321   <<    C11112331312111112111133133313331333133313331333133313231333132323213   >>      C11112331312111112111133133313331333133313331333133313231333132323212   >>