C3123121111331312121111331333132313331333133313232223213331323311231   >>    C312312111133131212111133133313231333133313331323222321333132331123   <<    C3123121111331312121111331333132313331333133313232223213331323311233   >>      C3123121111331312121111331333132313331333133313232223213331323311232   >>