C11112331312111112111133133313331333132313331323133313331333133313223231311   >>    C1111233131211111211113313331333133313231333132313331333133313331322323131   <<    C11112331312111112111133133313331333132313331323133313331333133313223231313   >>      C11112331312111112111133133313331333132313331323133313331333133313223231312   >>