C3123121111331312121111331333132313331323133313331333133313232313221   >>    C312312111133131212111133133313231333132313331333133313331323231322   <<    C3123121111331312121111331333132313331323133313331333133313232313223   >>      C3123121111331312121111331333132313331323133313331333133313232313222   >>