C312312111133131121333133313113313331333133112111112111133223322113231   >>    C31231211113313112133313331311331333133313311211111211113322332211323   <<    C312312111133131121333133313113313331333133112111112111133223322113233   >>      C312312111133131121333133313113313331333133112111112111133223322113232   >>