C111123313121111121111331333133313331333131233133313113313331333133112212321   >>    C11112331312111112111133133313331333133313123313331311331333133313311221232   <<    C111123313121111121111331333133313331333131233133313113313331333133112212323   >>      C111123313121111121111331333133313331333131233133313113313331333133112212322   >>