C11112331312111112111133133313331333132313331323133313331333133313331231211   >>    C1111233131211111211113313331333133313231333132313331333133313331333123121   <<    C11112331312111112111133133313331333132313331323133313331333133313331231213   >>      C11112331312111112111133133313331333132313331323133313331333133313331231212   >>