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  1. or download this
    #!/usr/local/bin/perl
    use strict;
    use warnings;
    ...
    splice(@stuff, $#stuff, 0, splice(@stuff, 3, 1));
    print "\nAfter:\n\n", join(",", @stuff), "\n";
    exit 1;
    
  2. or download this
    Before:
    
    one,two,three,four,five,six,seven,eight,nine,ten
    ...
    After:
    
    one,two,three,seven,eight,nine,ten,four,five,six
    
  3. or download this
    Before:
    
    one,two,three,four,five,six,seven,eight,nine,ten
    ...
    After:
    
    one,two,three,seven,eight,nine,four,five,six,ten