C3123121111113313121111331333133313223313331333131211113313331311212131   >>    C312312111111331312111133133313331322331333133313121111331333131121213   <<    C3123121111113313121111331333133313223313331333131211113313331311212133   >>      C3123121111113313121111331333133313223313331333131211113313331311212132   >>