- Added solutions by Burkhard Nickels.

13 files changed, 999 insertions, 972 deletions

diff --git a/challenge-040/burkhard-nickels/blogs.txt b/challenge-040/burkhard-nickels/blog.txt
index 9cb0ea99b5..9cb0ea99b5 100644
--- a/challenge-040/burkhard-nickels/blogs.txt
+++ b/challenge-040/burkhard-nickels/blog.txt
diff --git a/challenge-040/burkhard-nickels/perl5/ch-1.py b/challenge-040/burkhard-nickels/python/ch-1.py
index fd8c1c447f..fd8c1c447f 100755
--- a/challenge-040/burkhard-nickels/perl5/ch-1.py
+++ b/challenge-040/burkhard-nickels/python/ch-1.py
diff --git a/challenge-040/burkhard-nickels/perl5/ch-2.py b/challenge-040/burkhard-nickels/python/ch-2.py
index f5a38c425e..f5a38c425e 100755
--- a/challenge-040/burkhard-nickels/perl5/ch-2.py
+++ b/challenge-040/burkhard-nickels/python/ch-2.py
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 59b82bb96a..57207927c7 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,30 +1,124 @@
 {
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         }
+   "series" : [
+      {
+         "data" : [
+            {
+               "name" : "Adam Russell",
+               "drilldown" : "Adam Russell",
+               "y" : 3
+            },
+            {
+               "name" : "Andrezgz",
+               "drilldown" : "Andrezgz",
+               "y" : 2
+            },
+            {
+               "name" : "Anton Fedotov",
+               "drilldown" : "Anton Fedotov",
+               "y" : 2
+            },
+            {
+               "y" : 3,
+               "drilldown" : "Arne Sommer",
+               "name" : "Arne Sommer"
+            },
+            {
+               "name" : "Burkhard Nickels",
+               "y" : 5,
+               "drilldown" : "Burkhard Nickels"
+            },
+            {
+               "name" : "Duane Powell",
+               "y" : 2,
+               "drilldown" : "Duane Powell"
+            },
+            {
+               "name" : "Duncan C. White",
+               "y" : 2,
+               "drilldown" : "Duncan C. White"
+            },
+            {
+               "drilldown" : "E. Choroba",
+               "y" : 3,
+               "name" : "E. Choroba"
+            },
+            {
+               "name" : "Javier Luque",
+               "y" : 5,
+               "drilldown" : "Javier Luque"
+            },
+            {
+               "y" : 5,
+               "drilldown" : "Laurent Rosenfeld",
+               "name" : "Laurent Rosenfeld"
+            },
+            {
+               "name" : "Lubos Kolouch",
+               "y" : 2,
+               "drilldown" : "Lubos Kolouch"
+            },
+            {
+               "drilldown" : "Noud",
+               "y" : 2,
+               "name" : "Noud"
+            },
+            {
+               "name" : "Roger Bell West",
+               "y" : 4,
+               "drilldown" : "Roger Bell West"
+            },
+            {
+               "name" : "Ruben Westerberg",
+               "drilldown" : "Ruben Westerberg",
+               "y" : 4
+            },
+            {
+               "y" : 5,
+               "drilldown" : "Ryan Thompson",
+               "name" : "Ryan Thompson"
+            },
+            {
+               "drilldown" : "Saif Ahmed",
+               "y" : 2,
+               "name" : "Saif Ahmed"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Simon Proctor",
+               "name" : "Simon Proctor"
+            },
+            {
+               "name" : "Steven Wilson",
+               "drilldown" : "Steven Wilson",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Ulrich Rieke",
+               "y" : 2,
+               "name" : "Ulrich Rieke"
+            },
+            {
+               "drilldown" : "Wanderdoc",
+               "y" : 2,
+               "name" : "Wanderdoc"
+            }
+         ],
+         "name" : "Perl Weekly Challenge - 040",
+         "colorByPoint" : 1
       }
+   ],
+   "subtitle" : {
+      "text" : "[Champions: 20] Last updated at 2019-12-29 23:24:26 GMT"
    },
    "legend" : {
       "enabled" : 0
    },
-   "subtitle" : {
-      "text" : "[Champions: 19] Last updated at 2019-12-29 23:19:05 GMT"
-   },
-   "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
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 040"
-   },
    "chart" : {
       "type" : "column"
    },
+   "xAxis" : {
+      "type" : "category"
+   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
@@ -47,29 +141,47 @@
             "name" : "Adam Russell"
          },
          {
-            "name" : "Andrezgz",
             "id" : "Andrezgz",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "name" : "Andrezgz"
          },
          {
             "id" : "Anton Fedotov",
+            "name" : "Anton Fedotov",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ],
-            "name" : "Anton Fedotov"
+            ]
          },
          {
             "id" : "Arne Sommer",
+            "name" : "Arne Sommer",
+            "data" : [
+               [
+                  "Perl 6",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "id" : "Burkhard Nickels",
             "data" : [
                [
+                  "Perl 5",
+                  2
+               ],
+               [
                   "Perl 6",
                   2
                ],
@@ -78,31 +190,31 @@
                   1
                ]
             ],
-            "name" : "Arne Sommer"
+            "name" : "Burkhard Nickels"
          },
          {
-            "id" : "Duane Powell",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "name" : "Duane Powell"
+            "name" : "Duane Powell",
+            "id" : "Duane Powell"
          },
          {
             "name" : "Duncan C. White",
-            "id" : "Duncan C. White",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "id" : "Duncan C. White"
          },
          {
-            "name" : "E. Choroba",
             "id" : "E. Choroba",
+            "name" : "E. Choroba",
             "data" : [
                [
                   "Perl 5",
@@ -115,6 +227,7 @@
             ]
          },
          {
+            "id" : "Javier Luque",
             "name" : "Javier Luque",
             "data" : [
                [
@@ -129,10 +242,10 @@
                   "Blog",
                   1
                ]
-            ],
-            "id" : "Javier Luque"
+            ]
          },
          {
+            "id" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl 5",
@@ -147,32 +260,30 @@
                   1
                ]
             ],
-            "id" : "Laurent Rosenfeld",
             "name" : "Laurent Rosenfeld"
          },
          {
             "id" : "Lubos Kolouch",
+            "name" : "Lubos Kolouch",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ],
-            "name" : "Lubos Kolouch"
+            ]
          },
          {
-            "name" : "Noud",
+            "id" : "Noud",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
             ],
-            "id" : "Noud"
+            "name" : "Noud"
          },
          {
             "name" : "Roger Bell West",
-            "id" : "Roger Bell West",
             "data" : [
                [
                   "Perl 5",
@@ -182,10 +293,12 @@
                   "Perl 6",
                   2
                ]
-            ]
+            ],
+            "id" : "Roger Bell West"
          },
          {
             "id" : "Ruben Westerberg",
+            "name" : "Ruben Westerberg",
             "data" : [
                [
                   "Perl 5",
@@ -195,8 +308,7 @@
                   "Perl 6",
                   2
                ]
-            ],
-            "name" : "Ruben Westerberg"
+            ]
          },
          {
             "name" : "Ryan Thompson",
@@ -223,8 +335,8 @@
                   2
                ]
             ],
-            "id" : "Saif Ahmed",
-            "name" : "Saif Ahmed"
+            "name" : "Saif Ahmed",
+            "id" : "Saif Ahmed"
          },
          {
             "name" : "Simon Proctor",
@@ -243,135 +355,46 @@
                   2
                ]
             ],
-            "id" : "Steven Wilson",
-            "name" : "Steven Wilson"
+            "name" : "Steven Wilson",
+            "id" : "Steven Wilson"
          },
          {
+            "id" : "Ulrich Rieke",
+            "name" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ],
-            "id" : "Ulrich Rieke",
-            "name" : "Ulrich Rieke"
+            ]
          },
          {
-            "name" : "Wanderdoc",
+            "id" : "Wanderdoc",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "id" : "Wanderdoc"
+            "name" : "Wanderdoc"
          }
       ]
    },
-   "series" : [
-      {
-         "data" : [
-            {
-               "y" : 3,
-               "name" : "Adam Russell",
-               "drilldown" : "Adam Russell"
-            },
-            {
-               "y" : 2,
-               "name" : "Andrezgz",
-               "drilldown" : "Andrezgz"
-            },
-            {
-               "name" : "Anton Fedotov",
-               "drilldown" : "Anton Fedotov",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Arne Sommer",
-               "name" : "Arne Sommer",
-               "y" : 3
-            },
-            {
-               "drilldown" : "Duane Powell",
-               "name" : "Duane Powell",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Duncan C. White",
-               "name" : "Duncan C. White",
-               "y" : 2
-            },
-            {
-               "drilldown" : "E. Choroba",
-               "name" : "E. Choroba",
-               "y" : 3
-            },
-            {
-               "y" : 5,
-               "drilldown" : "Javier Luque",
-               "name" : "Javier Luque"
-            },
-            {
-               "drilldown" : "Laurent Rosenfeld",
-               "name" : "Laurent Rosenfeld",
-               "y" : 5
-            },
-            {
-               "y" : 2,
-               "name" : "Lubos Kolouch",
-               "drilldown" : "Lubos Kolouch"
-            },
-            {
-               "name" : "Noud",
-               "drilldown" : "Noud",
-               "y" : 2
-            },
-            {
-               "y" : 4,
-               "drilldown" : "Roger Bell West",
-               "name" : "Roger Bell West"
-            },
-            {
-               "name" : "Ruben Westerberg",
-               "drilldown" : "Ruben Westerberg",
-               "y" : 4
-            },
-            {
-               "y" : 5,
-               "name" : "Ryan Thompson",
-               "drilldown" : "Ryan Thompson"
-            },
-            {
-               "drilldown" : "Saif Ahmed",
-               "name" : "Saif Ahmed",
-               "y" : 2
-            },
-            {
-               "name" : "Simon Proctor",
-               "drilldown" : "Simon Proctor",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Steven Wilson",
-               "name" : "Steven Wilson",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "name" : "Ulrich Rieke",
-               "drilldown" : "Ulrich Rieke"
-            },
-            {
-               "name" : "Wanderdoc",
-               "drilldown" : "Wanderdoc",
-               "y" : 2
-            }
-         ],
-         "colorByPoint" : 1,
-         "name" : "Perl Weekly Challenge - 040"
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         }
       }
-   ],
-   "xAxis" : {
-      "type" : "category"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge - 040"
+   },
+   "tooltip" : {
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>",
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
+      "followPointer" : 1
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index bd329f175c..1f312005a7 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,10 +1,4 @@
 {
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
-   "chart" : {
-      "type" : "column"
-   },
    "legend" : {
       "enabled" : "false"
    },
@@ -14,39 +8,11 @@
          "text" : null
       }
    },
-   "xAxis" : {
-      "type" : "category",
-      "labels" : {
-         "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
-         }
-      }
-   },
-   "subtitle" : {
-      "text" : "Last updated at 2019-12-29 23:19:11 GMT"
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge Contributions - 2019"
-   },
    "series" : [
       {
-         "data" : [
-            [
-               "Blog",
-               432
-            ],
-            [
-               "Perl 5",
-               1649
-            ],
-            [
-               "Perl 6",
-               988
-            ]
-         ],
          "name" : "Contributions",
          "dataLabels" : {
+            "color" : "#FFFFFF",
             "y" : 10,
             "style" : {
                "fontFamily" : "Verdana, sans-serif",
@@ -54,10 +20,44 @@
             },
             "enabled" : "true",
             "rotation" : -90,
-            "format" : "{point.y:.0f}",
             "align" : "right",
-            "color" : "#FFFFFF"
+            "format" : "{point.y:.0f}"
+         },
+         "data" : [
+            [
+               "Blog",
+               433
+            ],
+            [
+               "Perl 5",
+               1651
+            ],
+            [
+               "Perl 6",
+               990
+            ]
+         ]
+      }
+   ],
+   "subtitle" : {
+      "text" : "Last updated at 2019-12-29 23:25:19 GMT"
+   },
+   "xAxis" : {
+      "type" : "category",
+      "labels" : {
+         "style" : {
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
          }
       }
-   ]
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge Contributions - 2019"
+   }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 4606dfbc1a..8b2047789e 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,19 +1,17 @@
 {
-   "title" : {
-      "text" : "Perl Weekly Challenge Language"
-   },
    "series" : [
       {
+         "name" : "Perl Weekly Challenge Languages",
          "colorByPoint" : "true",
          "data" : [
             {
-               "y" : 140,
                "name" : "#001",
+               "y" : 140,
                "drilldown" : "001"
             },
             {
-               "y" : 108,
                "name" : "#002",
+               "y" : 108,
                "drilldown" : "002"
             },
             {
@@ -22,33 +20,33 @@
                "y" : 71
             },
             {
-               "y" : 91,
                "name" : "#004",
+               "y" : 91,
                "drilldown" : "004"
             },
             {
+               "drilldown" : "005",
                "y" : 71,
-               "name" : "#005",
-               "drilldown" : "005"
+               "name" : "#005"
             },
             {
-               "drilldown" : "006",
+               "name" : "#006",
                "y" : 48,
-               "name" : "#006"
+               "drilldown" : "006"
             },
             {
-               "drilldown" : "007",
                "name" : "#007",
-               "y" : 56
+               "y" : 56,
+               "drilldown" : "007"
             },
             {
+               "drilldown" : "008",
                "name" : "#008",
-               "y" : 70,
-               "drilldown" : "008"
+               "y" : 70
             },
             {
-               "name" : "#009",
                "y" : 68,
+               "name" : "#009",
                "drilldown" : "009"
             },
             {
@@ -63,18 +61,18 @@
             },
             {
                "drilldown" : "012",
-               "name" : "#012",
-               "y" : 83
+               "y" : 83,
+               "name" : "#012"
             },
             {
+               "drilldown" : "013",
                "y" : 76,
-               "name" : "#013",
-               "drilldown" : "013"
+               "name" : "#013"
             },
             {
-               "drilldown" : "014",
+               "name" : "#014",
                "y" : 96,
-               "name" : "#014"
+               "drilldown" : "014"
             },
             {
                "drilldown" : "015",
@@ -82,84 +80,84 @@
                "y" : 93
             },
             {
-               "name" : "#016",
                "y" : 66,
+               "name" : "#016",
                "drilldown" : "016"
             },
             {
-               "name" : "#017",
                "y" : 79,
+               "name" : "#017",
                "drilldown" : "017"
             },
             {
-               "y" : 76,
                "name" : "#018",
+               "y" : 76,
                "drilldown" : "018"
             },
             {
-               "drilldown" : "019",
+               "name" : "#019",
                "y" : 95,
-               "name" : "#019"
+               "drilldown" : "019"
             },
             {
-               "drilldown" : "020",
                "y" : 95,
-               "name" : "#020"
+               "name" : "#020",
+               "drilldown" : "020"
             },
             {
-               "name" : "#021",
                "y" : 67,
+               "name" : "#021",
                "drilldown" : "021"
             },
             {
-               "drilldown" : "022",
                "name" : "#022",
-               "y" : 63
+               "y" : 63,
+               "drilldown" : "022"
             },
             {
+               "drilldown" : "023",
                "name" : "#023",
-               "y" : 91,
-               "drilldown" : "023"
+               "y" : 91
             },
             {
+               "drilldown" : "024",
                "name" : "#024",
-               "y" : 70,
-               "drilldown" : "024"
+               "y" : 70
             },
             {
-               "drilldown" : "025",
                "y" : 55,
-               "name" : "#025"
+               "name" : "#025",
+               "drilldown" : "025"
             },
             {
-               "y" : 70,
                "name" : "#026",
+               "y" : 70,
                "drilldown" : "026"
             },
             {
+               "drilldown" : "027",
                "name" : "#027",
-               "y" : 58,
-               "drilldown" : "027"
+               "y" : 58
             },
             {
-               "drilldown" : "028",
+               "name" : "#028",
                "y" : 78,
-               "name" : "#028"
+               "drilldown" : "028"
             },
             {
-               "y" : 77,
+               "drilldown" : "029",
                "name" : "#029",
-               "drilldown" : "029"
+               "y" : 77
             },
             {
-               "drilldown" : "030",
+               "y" : 115,
                "name" : "#030",
-               "y" : 115
+               "drilldown" : "030"
             },
             {
-               "drilldown" : "031",
+               "name" : "#031",
                "y" : 87,
-               "name" : "#031"
+               "drilldown" : "031"
             },
             {
                "drilldown" : "032",
@@ -167,54 +165,55 @@
                "name" : "#032"
             },
             {
-               "drilldown" : "033",
                "name" : "#033",
-               "y" : 108
+               "y" : 108,
+               "drilldown" : "033"
             },
             {
-               "drilldown" : "034",
+               "y" : 60,
                "name" : "#034",
-               "y" : 60
+               "drilldown" : "034"
             },
             {
-               "drilldown" : "035",
+               "y" : 60,
                "name" : "#035",
-               "y" : 60
+               "drilldown" : "035"
             },
             {
+               "drilldown" : "036",
                "y" : 61,
-               "name" : "#036",
-               "drilldown" : "036"
+               "name" : "#036"
             },
             {
-               "name" : "#037",
+               "drilldown" : "037",
                "y" : 63,
-               "drilldown" : "037"
+               "name" : "#037"
             },
             {
-               "y" : 61,
                "name" : "#038",
+               "y" : 61,
                "drilldown" : "038"
             },
             {
                "drilldown" : "039",
-               "y" : 58,
-               "name" : "#039"
+               "name" : "#039",
+               "y" : 58
             },
             {
-               "drilldown" : "040",
                "name" : "#040",
-               "y" : 54
+               "y" : 59,
+               "drilldown" : "040"
             }
-         ],
-         "name" : "Perl Weekly Challenge Languages"
+         ]
       }
    ],
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2019-12-29 23:19:11 GMT"
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
    },
-   "xAxis" : {
-      "type" : "category"
+   "legend" : {
+      "enabled" : "false"
    },
    "plotOptions" : {
       "series" : {
@@ -225,19 +224,15 @@
          "borderWidth" : 0
       }
    },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
+   "title" : {
+      "text" : "Perl Weekly Challenge Language"
    },
-   "legend" : {
-      "enabled" : "false"
+   "chart" : {
+      "type" : "column"
    },
    "drilldown" : {
       "series" : [
          {
-            "name" : "001",
-            "id" : "001",
             "data" : [
                [
                   "Perl 5",
@@ -251,9 +246,13 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "001",
+            "id" : "001"
          },
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+            "id" : "002",
+            "name" : "002",
             "data" : [
                [
                   "Perl 5",
@@ -267,11 +266,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "002",
-            "name" : "002"
+            ]
          },
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+            "name" : "003",
+            "id" : "003",
             "data" : [
                [
                   "Perl 5",
@@ -285,9 +284,7 @@
                   "Blog",
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                ]
-            ],
-            "name" : "003",
-            "id" : "003"
+            ]
          },
          {
             "name" : "004",
@@ -308,8 +305,8 @@
             ]
          },
          {
-            "name" : "005",
             "id" : "005",
+            "name" : "005",
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                [
                   "Perl 5",
@@ -344,8 +341,6 @@
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                   "Perl 5",
@@ -359,7 +354,9 @@
                   "Blog",
                   10
                ]
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+            "name" : "007"
          },
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@@ -376,12 +373,10 @@
                   12
                ]
             ],
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-            "name" : "008"
+            "name" : "008",
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                   "Perl 5",
@@ -395,9 +390,13 @@
                   "Blog",
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                ]
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+            "name" : "009"
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@@ -411,13 +410,9 @@
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                   "Perl 5",
@@ -431,11 +426,13 @@
                   "Blog",
                   10
                ]
-            ]
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+            "name" : "011"
          },
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             "name" : "012",
+            "id" : "012",
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@@ -452,8 +449,6 @@
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-            "name" : "013",
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                [
                   "Perl 5",
@@ -467,7 +462,9 @@
                   "Blog",
                   13
                ]
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+            "name" : "013"
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@@ -484,10 +481,12 @@
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+            "id" : "015",
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                   "Perl 5",
@@ -501,11 +500,11 @@
                   "Blog",
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                ]
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-            "name" : "015"
+            ]
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