C312312111112111113121333133313331333133313331333211232313233313221133221   >>    C31231211111211111312133313331333133313331333133321123231323331322113322   <<    C312312111112111113121333133313331333133313331333211232313233313221133223   >>      C312312111112111113121333133313331333133313331333211232313233313221133222   >>