C1111233131211111211113313331333133313331333133313331333133313113321112311   >>    C111123313121111121111331333133313331333133313331333133313331311332111231   <<    C1111233131211111211113313331333133313331333133313331333133313113321112313   >>      C1111233131211111211113313331333133313331333133313331333133313113321112312   >>