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  1. or download this
    'string'
    "another string"
    q(yet another)
    qq<or like this>
    
  2. or download this
    12
    1_2
    0b1100
    0x0c
    
  3. or download this
    #!/usr/bin/perl
    use warnings;
    ...
    my @arr = qw( 10 10 20 0x47 1 30 45 45 );
    my @converted = map /^0x/ && oct || $_, @arr;
    say for @converted;
    
  4. or download this
    ($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
    }map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,