C3123121111113313121111331333133313331333223313231333133313233313331121111   >>    C312312111111331312111133133313331333133322331323133313331323331333112111   <<    C3123121111113313121111331333133313331333223313231333133313233313331121113   >>      C3123121111113313121111331333133313331333223313231333133313233313331121112   >>