C312312111133131212111133133313331333133312133313231333131333132313331322122211   >>    C31231211113313121211113313331333133313331213331323133313133313231333132212221   <<    C312312111133131212111133133313331333133312133313231333131333132313331322122213   >>      C312312111133131212111133133313331333133312133313231333131333132313331322122212   >>