C1111233131211111211113313331333133313232321331121111133313121211211321   >>    C111123313121111121111331333133313331323232133112111113331312121121132   <<    C1111233131211111211113313331333133313232321331121111133313121211211323   >>      C1111233131211111211113313331333133313232321331121111133313121211211322   >>