C3123121111331311213331333131133133313331333133313331211113313232113321   >>    C312312111133131121333133313113313331333133313331333121111331323211332   <<    C3123121111331311213331333131133133313331333133313331211113313232113323   >>      C3123121111331311213331333131133133313331333133313331211113313232113322   >>