C3123121111331312121111331333132313331333133313232211211331121211   >>    C312312111133131212111133133313231333133313331323221121133112121   <<    C3123121111331312121111331333132313331333133313232211211331121213   >>      C3123121111331312121111331333132313331333133313232211211331121212   >>