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  1. or download this
    my @xx = ['A',1,['B',2,3,4],5,['C',6,['D',7,8,9]]];
    
    ...
        }
      }
    }
    
  2. or download this
    /A/1
    /A/B/2
    ...
    /A/C/D/7
    /A/C/D/8
    /A/C/D/9
    
  3. or download this
    Can't use string ("A") as an ARRAY ref while "strict refs" in use at t
    +est.pl line 6