C312312111112111113121333133313331333133313331333211232313233313331333132222111   >>    C31231211111211111312133313331333133313331333133321123231323331333133313222211   <<    C312312111112111113121333133313331333133313331333211232313233313331333132222113   >>      C312312111112111113121333133313331333133313331333211232313233313331333132222112   >>