C1111233131211111211113313331333133313331333133311221121111131321   >>    C111123313121111121111331333133313331333133313331122112111113132   <<    C1111233131211111211113313331333133313331333133311221121111131323   >>      C1111233131211111211113313331333133313331333133311221121111131322   >>