C111123313121111121111331333133313331323221211113313113313331311221123121   >>    C11112331312111112111133133313331333132322121111331311331333131122112312   <<    C111123313121111121111331333133313331323221211113313113313331311221123123   >>      C111123313121111121111331333133313331323221211113313113313331311221123122   >>