C312312111133131212111133133313331333133312133313231333133311233132322132331   >>    C31231211113313121211113313331333133313331213331323133313331123313232213233   <<    C312312111133131212111133133313331333133312133313231333133311233132322132333   >>      C312312111133131212111133133313331333133312133313231333133311233132322132332   >>