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  1. or download this
    my %hash;             # the % sigil denotes a hash
$hash{'element'} = 1; # the $ sigil denotes a scalar value (the 'eleme
+nt' element of %hash)
  2. or download this
    $A{c} = 9;
$A{d} = 16;
$A{f} = 36;
  3. or download this
    $a{c} = 9;
$a{d} = 16;
$a{f} = 36;