C1111233131211111211113313331333133313232313331311331323221323331   >>    C111123313121111121111331333133313331323231333131133132322132333   <<    C1111233131211111211113313331333133313232313331311331323221323333   >>      C1111233131211111211113313331333133313232313331311331323221323332   >>