C3123121111113313121111331333133313331313311233133313232321323132331   >>    C312312111111331312111133133313331333131331123313331323232132313233   <<    C3123121111113313121111331333133313331313311233133313232321323132333   >>      C3123121111113313121111331333133313331313311233133313232321323132332   >>