C3123121111331312121111331333132313331333133313232112323132223323221   >>    C312312111133131212111133133313231333133313331323211232313222332322   <<    C3123121111331312121111331333132313331333133313232112323132223323223   >>      C3123121111331312121111331333132313331333133313232112323132223323222   >>