C3123121111331312121111331333132313331333133313232223213331323132313221   >>    C312312111133131212111133133313231333133313331323222321333132313231322   <<    C3123121111331312121111331333132313331333133313232223213331323132313223   >>      C3123121111331312121111331333132313331333133313232223213331323132313222   >>