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diff --git a/challenge-024/joelle-maslak/perl6/ch-2.p6 b/challenge-024/joelle-maslak/perl6/ch-2.p6
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+++ b/challenge-024/joelle-maslak/perl6/ch-2.p6
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+#!/usr/bin/env perl6
+use v6;
+
+# This is the first one where I wrote a P5 solution before the P6 solution.
+#
+# It's also the only time the P6 output differs from the P5 output,
+# although both meet the requirement of the challenge.
+#
+# Difference: Perl 6 IO.words splits differently than Perl 5 split /\W+/
+
+sub MAIN(+@files) {
+    my %docs;
+
+    # Read the files, seperating out the words.  Sadly no parallelism
+    # here, I don't have a Perl6 module for doing simultanious file
+    # reads of large files.  :(
+    for @files -> $fn {
+        %docs{$fn} = $fn.IO.words.unique;
+    }
+
+    # Build the index
+    my %index;
+    for %docs.keys.sort -> $fn {
+        for @(%docs{$fn}) -> $word {
+            %index{$word} = [] unless %index{$word}:exists;
+            %index{$word}.push: $fn;
+        }
+    }
+
+    # Output the index
+    for %index.keys.sort -> $word {
+        say "$word: { %index{$word}.join(" ") }";
+    }
+}
+
+