- Added solutions by Flavio Poletti.

20 files changed, 1769 insertions, 1620 deletions

diff --git a/challenge-162/polettix/blog.txt b/challenge-162/polettix/blog.txt
new file mode 100644
index 0000000000..386fd7d5b9
--- /dev/null
+++ b/challenge-162/polettix/blog.txt
@@ -0,0 +1 @@
+https://github.polettix.it/ETOOBUSY/2022/04/26/pwc162-isbn-13/
diff --git a/challenge-162/polettix/blog1.txt b/challenge-162/polettix/blog1.txt
new file mode 100644
index 0000000000..8c6476eb94
--- /dev/null
+++ b/challenge-162/polettix/blog1.txt
@@ -0,0 +1 @@
+https://github.polettix.it/ETOOBUSY/2022/04/27/pwc162-wheatstone-playfair/
diff --git a/challenge-162/polettix/perl/ch-1.pl b/challenge-162/polettix/perl/ch-1.pl
new file mode 100644
index 0000000000..edd3efb32a
--- /dev/null
+++ b/challenge-162/polettix/perl/ch-1.pl
@@ -0,0 +1,16 @@
+#!/usr/bin/env perl
+use v5.24;
+use warnings;
+use experimental 'signatures';
+no warnings 'experimental::signatures';
+use List::Util qw< pairmap sum >;
+
+my $input = shift // '978-0-306-40615-7';
+say "ISBN-13 check digit for '$input' is @{[isbn_13($input)]}.";
+
+sub isbn_13 ($input) {
+   sum(
+      pairmap { -$a - 3* $b }
+      ($input =~ m{(\d)}gmxs)[0 .. 11]
+   ) % 10;
+}
diff --git a/challenge-162/polettix/perl/ch-2.pl b/challenge-162/polettix/perl/ch-2.pl
new file mode 100644
index 0000000000..0313de531a
--- /dev/null
+++ b/challenge-162/polettix/perl/ch-2.pl
@@ -0,0 +1,54 @@
+#!/usr/bin/env perl
+use v5.24;
+use warnings;
+use experimental 'signatures';
+no warnings 'experimental::signatures';
+
+say encrypt('playfair example', 'hide the gold in the tree stump');
+say decrypt('perl and raku', 'siderwrdulfipaarkcrw');
+
+sub encrypt ($key, $message) { wheatstone_playfair($key, $message, 1) }
+sub decrypt ($key, $message) { wheatstone_playfair($key, $message, 5 - 1) }
+The main workhorse is then the following function, I hope the comments are sufficient!
+
+sub wheatstone_playfair ($key, $message, $off) {
+
+   # pre-massage the input, go uppercase and remove all j:s
+   $_ = lc($_) =~ s{j}{i}rgmxs for $key, $message;
+
+   # we don't need no stinkin' matrix, a bijection in two arrays is OK
+   my %flag;
+   my @letter_at = grep { $flag{$_}++ == 0 }
+     split(m{[^a-z]?}imxs, $key), 'a' .. 'i', 'k' .. 'z', 'j';
+
+   # the "go back" might be a hash but we are C nostalgic
+   my $oA = ord('a');          # used to turn lc letters into array indexes
+   my @pos_of = map { $_->[0] }   # get indexes
+     sort { $a->[1] cmp $b->[1] } # sorted by letter position
+     map { [$_, $letter_at[$_]] } 0 .. $#letter_at;
+
+   # take only letters into consideration, split on everything else
+   my @message = split m{[^a-z]?}imxs, $message;
+   my @output;
+   while (@message) {
+
+      # first letter is whatever, second letter might be an X
+      my $A = shift @message;
+      my $B = @message && $message[0] ne $A ? shift @message : 'x';
+
+      # get positions, $A and $B are spoiled on the way but it's OK
+      my ($Ax, $Ay, $Bx, $By) = map {
+         my $v = $pos_of[ord($_) - $oA];
+         ($v % 5, int($v / 5))
+      } ($A, $B);
+
+      # apply Wheatstone-Playfair mapping
+      ($Ax, $Ay, $Bx, $By) =
+          $Ax == $Bx ? ($Ax, ($Ay + $off) % 5, $Bx, ($By + $off) % 5)
+        : $Ay == $By ? (($Ax + $off) % 5, $Ay, ($Bx + $off) % 5, $By)
+        :              ($Bx, $Ay, $Ax, $By);
+
+      push @output, @letter_at[$Ax + 5 * $Ay, $Bx + 5 * $By];
+   } ## end while (@message)
+   return join '', @output;
+} ## end sub wheatstone_playfair
diff --git a/challenge-162/polettix/raku/ch-1.raku b/challenge-162/polettix/raku/ch-1.raku
new file mode 100644
index 0000000000..3da9a8f806
--- /dev/null
+++ b/challenge-162/polettix/raku/ch-1.raku
@@ -0,0 +1,11 @@
+#!/usr/bin/env raku
+use v6;
+sub MAIN (Str:D $input = '978-0-306-40615-7') {
+   put "ISBN-13 check digit for '$input' is {isbn_13($input)}.";
+}
+
+sub isbn_13 ($input) {
+   $input.comb(/\d/)[0..11]    # focus on first 12 digits
+      .map({-$^a - 3 * $^b})   # apply equivalent weights
+      .sum % 10;               # sum and take remainder
+}
diff --git a/challenge-162/polettix/raku/ch-2.raku b/challenge-162/polettix/raku/ch-2.raku
new file mode 100644
index 0000000000..eff3949277
--- /dev/null
+++ b/challenge-162/polettix/raku/ch-2.raku
@@ -0,0 +1,43 @@
+#!/usr/bin/env raku
+use v6;
+
+put encrypt('playfair example', 'hide the gold in the tree stump');
+put decrypt('perl and raku', 'siderwrdulfipaarkcrw');
+
+sub encrypt ($key, $message) { wheatstone-playfair($key, $message, 1) }
+sub decrypt ($key, $message) { wheatstone-playfair($key, $message, 5 - 1) }
+
+sub wheatstone-playfair ($key is copy, $message is copy, $off) {
+   for $key, $message { $_ = $_.lc; s:g/j/i/ }
+
+   # we don't need no stinkin' matrix, a bijection in two arrays is OK
+   my %flag;
+   my @letter-at = ($key.comb(/<[a .. z]>/), 'a' .. 'i', 'k' .. 'z', 'j')
+      .flat.grep({ %flag{$_}++ == 0 });
+
+   # in Raku we're not C nostalgic any more
+   my %pos-of = (0..25).map({ @letter-at[$_] => $_ });
+
+   # take only letters into consideration, split on everything else
+   my @message = $message.comb(/<[ a ..z ]>/);
+   my @output;
+   while @message {
+
+      # first letter is whatever, second letter might be an X
+      my $A = shift @message;
+      my $B = @message && @message[0] ne $A ?? @message.shift !! 'x';
+
+      # get positions, $A and $B are spoiled on the way but it's OK
+      my ($Ax, $Ay, $Bx, $By) =
+         ($A, $B).map({ my $v = %pos-of{$_}; ($v % 5, ($v / 5).Int) }).flat;
+
+      # apply Wheatstone-Playfair mapping
+      ($Ax, $Ay, $Bx, $By) =
+           $Ax == $Bx ?? ($Ax, ($Ay + $off) % 5, $Bx, ($By + $off) % 5)
+        !! $Ay == $By ?? (($Ax + $off) % 5, $Ay, ($Bx + $off) % 5, $By)
+        !!               ($Bx, $Ay, $Ax, $By);
+
+      @output.push: @letter-at[$Ax + 5 * $Ay, $Bx + 5 * $By].Slip;
+   } ## end while (@message)
+   return join '', @output;
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index e2e56b2d81..8e08580bf7 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -2,21 +2,9 @@
    "chart" : {
       "type" : "column"
    },
-   "xAxis" : {
-      "type" : "category"
-   },
-   "title" : {
-      "text" : "The Weekly Challenge - 162"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
    "drilldown" : {
       "series" : [
          {
-            "name" : "Adam Russell",
             "data" : [
                [
                   "Perl",
@@ -27,7 +15,8 @@
                   2
                ]
             ],
-            "id" : "Adam Russell"
+            "id" : "Adam Russell",
+            "name" : "Adam Russell"
          },
          {
             "id" : "Alexander Pankoff",
@@ -40,6 +29,7 @@
             "name" : "Alexander Pankoff"
          },
          {
+            "name" : "Arne Sommer",
             "data" : [
                [
                   "Raku",
@@ -50,11 +40,9 @@
                   1
                ]
             ],
-            "id" : "Arne Sommer",
-            "name" : "Arne Sommer"
+            "id" : "Arne Sommer"
          },
          {
-            "id" : "Athanasius",
             "data" : [
                [
                   "Perl",
@@ -65,9 +53,11 @@
                   2
                ]
             ],
+            "id" : "Athanasius",
             "name" : "Athanasius"
          },
          {
+            "id" : "Cheok-Yin Fung",
             "data" : [
                [
                   "Perl",
@@ -78,11 +68,9 @@
                   1
                ]
             ],
-            "id" : "Cheok-Yin Fung",
             "name" : "Cheok-Yin Fung"
          },
          {
-            "name" : "Colin Crain",
             "id" : "Colin Crain",
             "data" : [
                [
@@ -93,11 +81,11 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "name" : "Colin Crain"
          },
          {
             "name" : "Dave Jacoby",
-            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
@@ -107,17 +95,18 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Dave Jacoby"
          },
          {
             "name" : "Duncan C. White",
-            "id" : "Duncan C. White",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Duncan C. White"
          },
          {
             "name" : "E. Choroba",
@@ -130,7 +119,25 @@
             ]
          },
          {
-            "name" : "James Smith",
+            "name" : "Flavio Poletti",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  2
+               ]
+            ],
+            "id" : "Flavio Poletti"
+         },
+         {
+            "id" : "James Smith",
             "data" : [
                [
                   "Perl",
@@ -141,39 +148,40 @@
                   1
                ]
             ],
-            "id" : "James Smith"
+            "name" : "James Smith"
          },
          {
-            "name" : "Jan Krnavek",
-            "id" : "Jan Krnavek",
             "data" : [
                [
                   "Raku",
                   1
                ]
-            ]
+            ],
+            "id" : "Jan Krnavek",
+            "name" : "Jan Krnavek"
          },
          {
-            "name" : "Jorg Sommrey",
             "id" : "Jorg Sommrey",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Jorg Sommrey"
          },
          {
+            "id" : "Julien Fiegehenn",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Julien Fiegehenn",
             "name" : "Julien Fiegehenn"
          },
          {
+            "id" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl",
@@ -188,28 +196,27 @@
                   1
                ]
             ],
-            "id" : "Laurent Rosenfeld",
             "name" : "Laurent Rosenfeld"
          },
          {
-            "id" : "Lubos Kolouch",
             "data" : [
                [
                   "Perl",
                   1
                ]
             ],
+            "id" : "Lubos Kolouch",
             "name" : "Lubos Kolouch"
          },
          {
-            "name" : "Luca Ferrari",
             "id" : "Luca Ferrari",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Luca Ferrari"
          },
          {
             "name" : "Mark Anderson",
@@ -252,27 +259,27 @@
             "name" : "Mohammad S Anwar"
          },
          {
-            "name" : "Niels van Dijke",
-            "id" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Niels van Dijke",
+            "name" : "Niels van Dijke"
          },
          {
+            "id" : "Paulo Custodio",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Paulo Custodio",
             "name" : "Paulo Custodio"
          },
          {
-            "id" : "Peter Campbell Smith",
+            "name" : "Peter Campbell Smith",
             "data" : [
                [
                   "Perl",
@@ -283,7 +290,7 @@
                   1
                ]
             ],
-            "name" : "Peter Campbell Smith"
+            "id" : "Peter Campbell Smith"
          },
          {
             "name" : "PokGoPun",
@@ -296,18 +303,17 @@
             ]
          },
          {
-            "name" : "Rick Bychowski",
+            "id" : "Rick Bychowski",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "id" : "Rick Bychowski"
+            "name" : "Rick Bychowski"
          },
          {
             "name" : "Robert DiCicco",
-            "id" : "Robert DiCicco",
             "data" : [
                [
                   "Perl",
@@ -317,7 +323,8 @@
                   "Raku",
                   1
                ]
-            ]
+            ],
+            "id" : "Robert DiCicco"
          },
          {
             "id" : "Robert Ransbottom",
@@ -349,6 +356,7 @@
          },
          {
             "name" : "Ryan Thompson",
+            "id" : "Ryan Thompson",
             "data" : [
                [
                   "Perl",
@@ -358,11 +366,10 @@
                   "Blog",
                   2
                ]
-            ],
-            "id" : "Ryan Thompson"
+            ]
          },
          {
-            "name" : "Ulrich Rieke",
+            "id" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
@@ -373,11 +380,10 @@
                   2
                ]
             ],
-            "id" : "Ulrich Rieke"
+            "name" : "Ulrich Rieke"
          },
          {
             "name" : "W. Luis Mochan",
-            "id" : "W. Luis Mochan",
             "data" : [
                [
                   "Perl",
@@ -387,48 +393,50 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "W. Luis Mochan"
          }
       ]
    },
-   "subtitle" : {
-      "text" : "[Champions: 31] Last updated at 2022-05-01 23:41:38 GMT"
+   "legend" : {
+      "enabled" : 0
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "title" : {
+      "text" : "The Weekly Challenge - 162"
    },
    "plotOptions" : {
       "series" : {
+         "borderWidth" : 0,
          "dataLabels" : {
             "enabled" : 1,
             "format" : "{point.y}"
-         },
-         "borderWidth" : 0
+         }
       }
    },
    "tooltip" : {
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
       "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>",
-      "followPointer" : 1,
-      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>"
-   },
-   "legend" : {
-      "enabled" : 0
+      "followPointer" : 1
    },
    "series" : [
       {
-         "name" : "The Weekly Challenge - 162",
-         "colorByPoint" : 1,
          "data" : [
             {
-               "y" : 3,
                "name" : "Adam Russell",
+               "y" : 3,
                "drilldown" : "Adam Russell"
             },
             {
-               "drilldown" : "Alexander Pankoff",
+               "y" : 2,
                "name" : "Alexander Pankoff",
-               "y" : 2
+               "drilldown" : "Alexander Pankoff"
             },
             {
-               "y" : 3,
                "name" : "Arne Sommer",
+               "y" : 3,
                "drilldown" : "Arne Sommer"
             },
             {
@@ -452,9 +460,9 @@
                "y" : 3
             },
             {
-               "drilldown" : "Duncan C. White",
+               "name" : "Duncan C. White",
                "y" : 2,
-               "name" : "Duncan C. White"
+               "drilldown" : "Duncan C. White"
             },
             {
                "y" : 2,
@@ -462,9 +470,14 @@
                "drilldown" : "E. Choroba"
             },
             {
-               "drilldown" : "James Smith",
+               "y" : 6,
+               "name" : "Flavio Poletti",
+               "drilldown" : "Flavio Poletti"
+            },
+            {
                "y" : 3,
-               "name" : "James Smith"
+               "name" : "James Smith",
+               "drilldown" : "James Smith"
             },
             {
                "drilldown" : "Jan Krnavek",
@@ -477,39 +490,39 @@
                "y" : 2
             },
             {
-               "y" : 2,
                "name" : "Julien Fiegehenn",
+               "y" : 2,
                "drilldown" : "Julien Fiegehenn"
             },
             {
-               "drilldown" : "Laurent Rosenfeld",
                "y" : 5,
-               "name" : "Laurent Rosenfeld"
+               "name" : "Laurent Rosenfeld",
+               "drilldown" : "Laurent Rosenfeld"
             },
             {
+               "drilldown" : "Lubos Kolouch",
                "y" : 1,
-               "name" : "Lubos Kolouch",
-               "drilldown" : "Lubos Kolouch"
+               "name" : "Lubos Kolouch"
             },
             {
-               "drilldown" : "Luca Ferrari",
+               "y" : 2,
                "name" : "Luca Ferrari",
-               "y" : 2
+               "drilldown" : "Luca Ferrari"
             },
             {
                "drilldown" : "Mark Anderson",
-               "name" : "Mark Anderson",
-               "y" : 2
+               "y" : 2,
+               "name" : "Mark Anderson"
             },
             {
+               "drilldown" : "Marton Polgar",
                "y" : 2,
-               "name" : "Marton Polgar",
-               "drilldown" : "Marton Polgar"
+               "name" : "Marton Polgar"
             },
             {
-               "name" : "Matthew Neleigh",
+               "drilldown" : "Matthew Neleigh",
                "y" : 2,
-               "drilldown" : "Matthew Neleigh"
+               "name" : "Matthew Neleigh"
             },
             {
                "drilldown" : "Mohammad S Anwar",
@@ -517,29 +530,29 @@
                "y" : 1
             },
             {
-               "drilldown" : "Niels van Dijke",
+               "y" : 2,
                "name" : "Niels van Dijke",
-               "y" : 2
+               "drilldown" : "Niels van Dijke"
             },
             {
-               "y" : 2,
                "name" : "Paulo Custodio",
+               "y" : 2,
                "drilldown" : "Paulo Custodio"
             },
             {
-               "drilldown" : "Peter Campbell Smith",
                "name" : "Peter Campbell Smith",
-               "y" : 3
+               "y" : 3,
+               "drilldown" : "Peter Campbell Smith"
             },
             {
-               "y" : 2,
                "name" : "PokGoPun",
+               "y" : 2,
                "drilldown" : "PokGoPun"
             },
             {
-               "drilldown" : "Rick Bychowski",
+               "y" : 2,
                "name" : "Rick Bychowski",
-               "y" : 2
+               "drilldown" : "Rick Bychowski"
             },
             {
                "name" : "Robert DiCicco",
@@ -557,21 +570,31 @@
                "y" : 5
             },
             {
-               "name" : "Ryan Thompson",
+               "drilldown" : "Ryan Thompson",
                "y" : 4,
-               "drilldown" : "Ryan Thompson"
+               "name" : "Ryan Thompson"
             },
             {
-               "name" : "Ulrich Rieke",
+               "drilldown" : "Ulrich Rieke",
                "y" : 3,
-               "drilldown" : "Ulrich Rieke"
+               "name" : "Ulrich Rieke"
             },
             {
                "drilldown" : "W. Luis Mochan",
-               "y" : 3,
-               "name" : "W. Luis Mochan"
+               "name" : "W. Luis Mochan",
+               "y" : 3
             }
-         ]
+         ],
+         "colorByPoint" : 1,
+         "name" : "The Weekly Challenge - 162"
       }
-   ]
+   ],
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "subtitle" : {
+      "text" : "[Champions: 32] Last updated at 2022-05-02 03:30:20 GMT"
+   }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index a696ca667f..b67cca2acb 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,62 +1,62 @@
 {
-   "yAxis" : {
-      "min" : 0,
-      "title" : {
-         "text" : null
-      }
-   },
    "title" : {
       "text" : "The Weekly Challenge Contributions [2019 - 2022]"
    },
-   "xAxis" : {
-      "type" : "category",
-      "labels" : {
-         "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
-         }
-      }
-   },
-   "chart" : {
-      "type" : "column"
-   },
    "tooltip" : {
       "pointFormat" : "<b>{point.y:.0f}</b>"
    },
-   "subtitle" : {
-      "text" : "Last updated at 2022-05-01 23:41:37 GMT"
+   "yAxis" : {
+      "min" : 0,
+      "title" : {
+         "text" : null
+      }
    },
    "series" : [
       {
          "dataLabels" : {
+            "rotation" : -90,
+            "y" : 10,
             "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
             },
-            "rotation" : -90,
             "align" : "right",
             "format" : "{point.y:.0f}",
-            "enabled" : "true",
             "color" : "#FFFFFF",
-            "y" : 10
+            "enabled" : "true"
          },
          "name" : "Contributions",
          "data" : [
             [
                "Blog",
-               2485
+               2487
             ],
             [
                "Perl",
-               7920
+               7922
             ],
             [
                "Raku",
-               4693
+               4695
             ]
          ]
       }
    ],
+   "subtitle" : {
+      "text" : "Last updated at 2022-05-02 03:30:20 GMT"
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "xAxis" : {
+      "labels" : {
+         "style" : {
+            "fontFamily" : "Verdana, sans-serif",
+            "fontSize" : "13px"
+         }
+      },
+      "type" : "category"
+   },
    "legend" : {
       "enabled" : "false"
    }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 748926ae98..62a08b85ad 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,18 +1,7 @@
 {
-   "xAxis" : {
-      "type" : "category"
-   },
    "chart" : {
       "type" : "column"
    },
-   "title" : {
-      "text" : "The Weekly Challenge Language"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
    "drilldown" : {
       "series" : [
          {
@@ -52,8 +41,6 @@
             "name" : "002"
          },
          {
-            "name" : "003",
-            "id" : "003",
             "data" : [
                [
                   "Perl",
@@ -67,10 +54,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "003",
+            "name" : "003"
          },
          {
-            "name" : "004",
             "id" : "004",
             "data" : [
                [
@@ -85,10 +73,10 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "004"
          },
          {
-            "name" : "005",
             "id" : "005",
             "data" : [
                [
@@ -103,7 +91,8 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "005"
          },
          {
             "name" : "006",
@@ -124,6 +113,7 @@
             "id" : "006"
          },
          {
+            "id" : "007",
             "data" : [
                [
                   "Perl",
@@ -138,11 +128,10 @@
                   10
                ]
             ],
-            "id" : "007",
             "name" : "007"
          },
          {
-            "name" : "008",
+            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -157,10 +146,10 @@
                   12
                ]
             ],
-            "id" : "008"
+            "name" : "008"
          },
          {
-            "id" : "009",
+            "name" : "009",
             "data" : [
                [
                   "Perl",
@@ -175,10 +164,10 @@
                   13
                ]
             ],
-            "name" : "009"
+            "id" : "009"
          },
          {
-            "name" : "010",
+            "id" : "010",
             "data" : [
                [
                   "Perl",
@@ -193,10 +182,9 @@
                   11
                ]
             ],
-            "id" : "010"
+            "name" : "010"
          },
          {
-            "name" : "011",
             "id" : "011",
             "data" : [
                [
@@ -211,11 +199,10 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "011"
          },
          {
-            "name" : "012",
-            "id" : "012",
             "data" : [
                [
                   "Perl",
@@ -229,9 +216,12 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "012",
+            "name" : "012"
          },
          {
+            "name" : "013",
             "id" : "013",
             "data" : [
                [
@@ -246,11 +236,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "name" : "013"
+            ]
          },
          {
             "name" : "014",
+            "id" : "014",
             "data" : [
                [
                   "Perl",
@@ -264,11 +254,9 @@
                   "Blog",
                   15
                ]
-            ],
-            "id" : "014"
+            ]
          },
          {
-            "id" : "015",
             "data" : [
                [
                   "Perl",
@@ -283,6 +271,7 @@
                   15
                ]
             ],
+            "id" : "015",
             "name" : "015"
          },
          {
@@ -304,6 +293,7 @@
             "name" : "016"
          },
          {
+            "id" : "017",
             "data" : [
                [
                   "Perl",