C3123121111331312121111331333133313331333121333133313112211232321321   >>    C312312111133131212111133133313331333133312133313331311221123232132   <<    C3123121111331312121111331333133313331333121333133313112211232321323   >>      C3123121111331312121111331333133313331333121333133313112211232321322   >>