C312312111133131212111133133313231333132311331333133313331333221222113231   >>    C31231211113313121211113313331323133313231133133313331333133322122211323   <<    C312312111133131212111133133313231333132311331333133313331333221222113233   >>      C312312111133131212111133133313231333132311331333133313331333221222113232   >>