- Added solution by Andrew Shitov.

14 files changed, 1336 insertions, 1321 deletions

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index fd36bc4d87..bd58d5e428 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,59 +1,83 @@
 {
-   "chart" : {
-      "type" : "column"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
+   "xAxis" : {
+      "type" : "category"
    },
    "tooltip" : {
+      "followPointer" : 1,
       "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
-   },
-   "title" : {
-      "text" : "The Weekly Challenge - 139"
-   },
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         }
-      }
-   },
-   "xAxis" : {
-      "type" : "category"
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>"
    },
    "subtitle" : {
-      "text" : "[Champions: 3] Last updated at 2021-11-16 13:35:26 GMT"
+      "text" : "[Champions: 4] Last updated at 2021-11-16 19:06:32 GMT"
    },
    "legend" : {
       "enabled" : 0
    },
+   "series" : [
+      {
+         "data" : [
+            {
+               "drilldown" : "Andrew Shitov",
+               "name" : "Andrew Shitov",
+               "y" : 1
+            },
+            {
+               "name" : "Olivier Delouya",
+               "drilldown" : "Olivier Delouya",
+               "y" : 1
+            },
+            {
+               "name" : "Peter Campbell Smith",
+               "drilldown" : "Peter Campbell Smith",
+               "y" : 2
+            },
+            {
+               "name" : "Ulrich Rieke",
+               "drilldown" : "Ulrich Rieke",
+               "y" : 4
+            }
+         ],
+         "colorByPoint" : 1,
+         "name" : "The Weekly Challenge - 139"
+      }
+   ],
+   "title" : {
+      "text" : "The Weekly Challenge - 139"
+   },
+   "chart" : {
+      "type" : "column"
+   },
    "drilldown" : {
       "series" : [
          {
+            "name" : "Andrew Shitov",
+            "id" : "Andrew Shitov",
+            "data" : [
+               [
+                  "Raku",
+                  1
+               ]
+            ]
+         },
+         {
+            "name" : "Olivier Delouya",
             "id" : "Olivier Delouya",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ],
-            "name" : "Olivier Delouya"
+            ]
          },
          {
-            "name" : "Peter Campbell Smith",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Peter Campbell Smith"
+            "id" : "Peter Campbell Smith",
+            "name" : "Peter Campbell Smith"
          },
          {
             "id" : "Ulrich Rieke",
@@ -71,27 +95,18 @@
          }
       ]
    },
-   "series" : [
-      {
-         "name" : "The Weekly Challenge - 139",
-         "data" : [
-            {
-               "y" : 1,
-               "drilldown" : "Olivier Delouya",
-               "name" : "Olivier Delouya"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Peter Campbell Smith",
-               "name" : "Peter Campbell Smith"
-            },
-            {
-               "name" : "Ulrich Rieke",
-               "drilldown" : "Ulrich Rieke",
-               "y" : 4
-            }
-         ],
-         "colorByPoint" : 1
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
+      }
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
       }
-   ]
+   }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index c850a22c19..b2010c347c 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,33 +1,37 @@
 {
-   "title" : {
-      "text" : "The Weekly Challenge Contributions [2019 - 2021]"
+   "xAxis" : {
+      "labels" : {
+         "style" : {
+            "fontFamily" : "Verdana, sans-serif",
+            "fontSize" : "13px"
+         }
+      },
+      "type" : "category"
+   },
+   "subtitle" : {
+      "text" : "Last updated at 2021-11-16 19:06:32 GMT"
    },
    "tooltip" : {
       "pointFormat" : "<b>{point.y:.0f}</b>"
    },
-   "yAxis" : {
-      "title" : {
-         "text" : null
-      },
-      "min" : 0
-   },
-   "chart" : {
-      "type" : "column"
+   "legend" : {
+      "enabled" : "false"
    },
    "series" : [
       {
          "dataLabels" : {
-            "format" : "{point.y:.0f}",
+            "rotation" : -90,
             "style" : {
                "fontSize" : "13px",
                "fontFamily" : "Verdana, sans-serif"
             },
-            "y" : 10,
-            "rotation" : -90,
-            "color" : "#FFFFFF",
             "align" : "right",
-            "enabled" : "true"
+            "color" : "#FFFFFF",
+            "y" : 10,
+            "enabled" : "true",
+            "format" : "{point.y:.0f}"
          },
+         "name" : "Contributions",
          "data" : [
             [
                "Blog",
@@ -39,25 +43,21 @@
             ],
             [
                "Raku",
-               4022
+               4023
             ]
-         ],
-         "name" : "Contributions"
+         ]
       }
    ],
-   "legend" : {
-      "enabled" : "false"
+   "chart" : {
+      "type" : "column"
    },
-   "subtitle" : {
-      "text" : "Last updated at 2021-11-16 13:35:26 GMT"
+   "title" : {
+      "text" : "The Weekly Challenge Contributions [2019 - 2021]"
    },
-   "xAxis" : {
-      "labels" : {
-         "style" : {
-            "fontSize" : "13px",
-            "fontFamily" : "Verdana, sans-serif"
-         }
+   "yAxis" : {
+      "title" : {
+         "text" : null
       },
-      "type" : "category"
+      "min" : 0
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 6173d7e365..5db8fd4529 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,37 +1,11 @@
 {
-   "title" : {
-      "text" : "The Weekly Challenge Language"
-   },
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         }
-      }
-   },
-   "tooltip" : {
-      "followPointer" : "true",
-      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
-      "headerFormat" : "<span style=\"font-size:11px\"></span>"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
-   "chart" : {
-      "type" : "column"
-   },
    "series" : [
       {
-         "colorByPoint" : "true",
          "data" : [
             {
                "drilldown" : "001",
-               "y" : 161,
-               "name" : "#001"
+               "name" : "#001",
+               "y" : 161
             },
             {
                "name" : "#002",
@@ -39,39 +13,39 @@
                "y" : 125
             },
             {
+               "name" : "#003",
                "drilldown" : "003",
-               "y" : 83,
-               "name" : "#003"
+               "y" : 83
             },
             {
-               "drilldown" : "004",
                "y" : 99,
+               "drilldown" : "004",
                "name" : "#004"
             },
             {
-               "y" : 78,
+               "name" : "#005",
                "drilldown" : "005",
-               "name" : "#005"
+               "y" : 78
             },
             {
-               "y" : 58,
                "drilldown" : "006",
-               "name" : "#006"
+               "name" : "#006",
+               "y" : 58
             },
             {
                "drilldown" : "007",
-               "y" : 64,
-               "name" : "#007"
+               "name" : "#007",
+               "y" : 64
             },
             {
                "drilldown" : "008",
-               "y" : 78,
-               "name" : "#008"
+               "name" : "#008",
+               "y" : 78
             },
             {
+               "drilldown" : "009",
                "name" : "#009",
-               "y" : 76,
-               "drilldown" : "009"
+               "y" : 76
             },
             {
                "y" : 65,
@@ -80,23 +54,23 @@
             },
             {
                "drilldown" : "011",
-               "y" : 85,
-               "name" : "#011"
+               "name" : "#011",
+               "y" : 85
             },
             {
                "drilldown" : "012",
-               "y" : 89,
-               "name" : "#012"
+               "name" : "#012",
+               "y" : 89
             },
             {
-               "name" : "#013",
                "drilldown" : "013",
-               "y" : 85
+               "y" : 85,
+               "name" : "#013"
             },
             {
+               "name" : "#014",
                "drilldown" : "014",
-               "y" : 101,
-               "name" : "#014"
+               "y" : 101
             },
             {
                "name" : "#015",
@@ -104,34 +78,34 @@
                "y" : 99
             },
             {
-               "name" : "#016",
                "y" : 71,
-               "drilldown" : "016"
+               "drilldown" : "016",
+               "name" : "#016"
             },
             {
-               "name" : "#017",
                "y" : 84,
-               "drilldown" : "017"
+               "drilldown" : "017",
+               "name" : "#017"
             },
             {
                "name" : "#018",
-               "y" : 81,
-               "drilldown" : "018"
+               "drilldown" : "018",
+               "y" : 81
             },
             {
-               "name" : "#019",
+               "drilldown" : "019",
                "y" : 103,
-               "drilldown" : "019"
+               "name" : "#019"
             },
             {
-               "name" : "#020",
+               "y" : 101,
                "drilldown" : "020",
-               "y" : 101
+               "name" : "#020"
             },
             {
-               "y" : 72,
+               "name" : "#021",
                "drilldown" : "021",
-               "name" : "#021"
+               "y" : 72
             },
             {
                "drilldown" : "022",
@@ -139,28 +113,28 @@
                "name" : "#022"
             },
             {
-               "drilldown" : "023",
                "y" : 97,
+               "drilldown" : "023",
                "name" : "#023"
             },
             {
+               "name" : "#024",
                "drilldown" : "024",
-               "y" : 75,
-               "name" : "#024"
+               "y" : 75
             },
             {
                "drilldown" : "025",
-               "y" : 59,
-               "name" : "#025"
+               "name" : "#025",
+               "y" : 59
             },
             {
+               "name" : "#026",
                "drilldown" : "026",
-               "y" : 74,
-               "name" : "#026"
+               "y" : 74
             },
             {
-               "drilldown" : "027",
                "y" : 60,
+               "drilldown" : "027",
                "name" : "#027"
             },
             {
@@ -169,19 +143,19 @@
                "name" : "#028"
             },
             {
+               "drilldown" : "029",
                "name" : "#029",
-               "y" : 79,
-               "drilldown" : "029"
+               "y" : 79
             },
             {
-               "name" : "#030",
+               "drilldown" : "030",
                "y" : 117,
-               "drilldown" : "030"
+               "name" : "#030"
             },
             {
+               "name" : "#031",
                "drilldown" : "031",
-               "y" : 89,
-               "name" : "#031"
+               "y" : 89
             },
             {
                "y" : 94,
@@ -190,48 +164,48 @@
             },
             {
                "drilldown" : "033",
-               "y" : 110,
-               "name" : "#033"
+               "name" : "#033",
+               "y" : 110
             },
             {
                "name" : "#034",
-               "y" : 64,
-               "drilldown" : "034"
+               "drilldown" : "034",
+               "y" : 64
             },
             {
                "name" : "#035",
-               "y" : 64,
-               "drilldown" : "035"
+               "drilldown" : "035",
+               "y" : 64
             },
             {
-               "drilldown" : "036",
                "y" : 68,
+               "drilldown" : "036",
                "name" : "#036"
             },
             {
-               "y" : 67,
+               "name" : "#037",
                "drilldown" : "037",
-               "name" : "#037"
+               "y" : 67
             },
             {
+               "drilldown" : "038",
                "name" : "#038",
-               "y" : 68,
-               "drilldown" : "038"
+               "y" : 68
             },
             {
+               "drilldown" : "039",
                "name" : "#039",
-               "y" : 62,
-               "drilldown" : "039"
+               "y" : 62
             },
             {
                "drilldown" : "040",
-               "y" : 73,
-               "name" : "#040"
+               "name" : "#040",
+               "y" : 73
             },
             {
-               "y" : 76,
                "drilldown" : "041",
-               "name" : "#041"
+               "name" : "#041",
+               "y" : 76
             },
             {
                "y" : 92,
@@ -239,19 +213,19 @@
                "name" : "#042"
             },
             {
+               "drilldown" : "043",
                "name" : "#043",
-               "y" : 68,
-               "drilldown" : "043"
+               "y" : 68
             },
             {
+               "drilldown" : "044",
                "name" : "#044",
-               "y" : 85,
-               "drilldown" : "044"
+               "y" : 85
             },
             {
-               "name" : "#045",
+               "drilldown" : "045",
                "y" : 96,
-               "drilldown" : "045"
+               "name" : "#045"
             },
             {
                "name" : "#046",
@@ -259,64 +233,64 @@
                "y" : 87
             },
             {
+               "name" : "#047",
                "drilldown" : "047",
-               "y" : 84,
-               "name" : "#047"
+               "y" : 84
             },
             {
-               "name" : "#048",
+               "y" : 108,
                "drilldown" : "048",
-               "y" : 108
+               "name" : "#048"
             },
             {
-               "name" : "#049",
+               "y" : 89,
                "drilldown" : "049",
-               "y" : 89
+               "name" : "#049"
             },
             {
-               "y" : 98,
+               "name" : "#050",
                "drilldown" : "050",
-               "name" : "#050"
+               "y" : 98
             },
             {
-               "name" : "#051",
+               "drilldown" : "051",
                "y" : 89,
-               "drilldown" : "051"
+               "name" : "#051"
             },
             {
-               "drilldown" : "052",
                "y" : 91,
+               "drilldown" : "052",
                "name" : "#052"
             },
             {
+               "name" : "#053",
                "drilldown" : "053",
-               "y" : 101,
-               "name" : "#053"
+               "y" : 101
             },
             {
-               "name" : "#054",
                "drilldown" : "054",
-               "y" : 103
+               "y" : 103,
+               "name" : "#054"
             },
             {
-               "name" : "#055",
                "y" : 88,
-               "drilldown" : "055"
+               "drilldown" : "055",
+               "name" : "#055"
             },
             {
                "name" : "#056",
-               "y" : 95,
-               "drilldown" : "056"
+               "drilldown" : "056",
+               "y" : 95
             },
             {
-               "y" : 80,
                "drilldown" : "057",
-               "name" : "#057"
+               "name" : "#057",
+               "y" : 80
             },
             {
-               "y" : 69,
+               "name" : "#058",
                "drilldown" : "058",
-               "name" : "#058"
+               "y" : 69
             },
             {
                "y" : 89,
@@ -324,14 +298,14 @@
                "name" : "#059"
             },
             {
-               "name" : "#060",
+               "y" : 85,
                "drilldown" : "060",
-               "y" : 85
+               "name" : "#060"
             },
             {
+               "drilldown" : "061",
                "name" : "#061",
-               "y" : 81,
-               "drilldown" : "061"
+               "y" : 81
             },
             {
                "drilldown" : "062",
@@ -339,74 +313,74 @@
                "name" : "#062"
             },
             {
+               "name" : "#063",
                "drilldown" : "063",
-               "y" : 89,
-               "name" : "#063"
+               "y" : 89
             },
             {
-               "name" : "#064",
+               "y" : 80,
                "drilldown" : "064",
-               "y" : 80
+               "name" : "#064"
             },
             {
                "drilldown" : "065",
-               "y" : 73,
-               "name" : "#065"
+               "name" : "#065",
+               "y" : 73
             },
             {
+               "name" : "#066",
                "drilldown" : "066",
-               "y" : 84,
-               "name" : "#066"
+               "y" : 84
             },
             {
                "name" : "#067",
-               "y" : 90,
-               "drilldown" : "067"
+               "drilldown" : "067",
+               "y" : 90
             },
             {
-               "drilldown" : "068",
                "y" : 75,
+               "drilldown" : "068",
                "name" : "#068"
             },
             {
                "name" : "#069",
-               "y" : 83,
-               "drilldown" : "069"
+               "drilldown" : "069",
+               "y" : 83
             },
             {
+               "drilldown" : "070",
                "name" : "#070",
-               "y" : 93,
-               "drilldown" : "070"
+               "y" : 93
             },
             {
-               "y" : 78,
                "drilldown" : "071",
-               "name" : "#071"
+               "name" : "#071",
+               "y" : 78
             },
             {
+               "drilldown" : "072",
                "name" : "#072",
-               "y" : 112,
-               "drilldown" : "072"
+               "y" : 112
             },
             {
+               "drilldown" : "073",
                "name" : "#073",
-               "y" : 110,
-               "drilldown" : "073"
+               "y" : 110
             },
             {
-               "name" : "#074",
+               "y" : 115,
                "drilldown" : "074",
-               "y" : 115
+               "name" : "#074"
             },
             {
-               "y" : 115,
                "drilldown" : "075",
-               "name" : "#075"
+               "name" : "#075",
+               "y" : 115
             },
             {
                "drilldown" : "076",
-               "y" : 99,
-               "name" : "#076"
+               "name" : "#076",
+               "y" : 99
             },
             {
                "drilldown" : "077",
@@ -414,9 +388,9 @@
                "name" : "#077"
             },
             {
-               "y" : 127,
+               "name" : "#078",
                "drilldown" : "078",
-               "name" : "#078"
+               "y" : 127
             },
             {
                "name" : "#079",
@@ -429,23 +403,23 @@
                "name" : "#080"
             },
             {
-               "drilldown" : "081",
                "y" : 114,
+               "drilldown" : "081",
                "name" : "#081"
             },
             {
+               "name" : "#082",
                "drilldown" : "082",
-               "y" : 114,
-               "name" : "#082"
+               "y" : 114
             },
             {
-               "name" : "#083",
+               "drilldown" : "083",
                "y" : 127,
-               "drilldown" : "083"
+               "name" : "#083"
             },
             {
-               "drilldown" : "084",
                "y" : 119,
+               "drilldown" : "084",
                "name" : "#084"
             },
             {
@@ -454,43 +428,43 @@
                "y" : 114
             },
             {
-               "name" : "#086",
                "drilldown" : "086",
-               "y" : 104
+               "y" : 104,
+               "name" : "#086"
             },
             {
-               "name" : "#087",
                "y" : 101,
-               "drilldown" : "087"
+               "drilldown" : "087",
+               "name" : "#087"
             },
             {
                "name" : "#088",
-               "y" : 121,
-               "drilldown" : "088"
+               "drilldown" : "088",
+               "y" : 121
             },
             {
-               "y" : 113,
                "drilldown" : "089",
-               "name" : "#089"
+               "name" : "#089",
+               "y" : 113
             },
             {
-               "y" : 113,
+               "name" : "#090",
                "drilldown" : "090",
-               "name" : "#090"
+               "y" : 113
             },
             {
-               "name" : "#091",
+               "y" : 108,
                "drilldown" : "091",
-               "y" : 108
+               "name" : "#091"
             },
             {
-               "name" : "#092",
                "y" : 98,
-               "drilldown" : "092"
+               "drilldown" : "092",
+               "name" : "#092"
             },
             {
-               "name" : "#093",
                "drilldown" : "093",
+               "name" : "#093",
                "y" : 87
             },
             {
@@ -504,79 +478,79 @@
                "y" : 108
             },
             {
-               "name" : "#096",
                "y" : 108,
-               "drilldown" : "096"
+               "drilldown" : "096",
+               "name" : "#096"
             },
             {
+               "drilldown" : "097",
                "name" : "#097",
-               "y" : 111,
-               "drilldown" : "097"
+               "y" : 111
             },
             {
+               "name" : "#098",
                "drilldown" : "098",
-               "y" : 108,
-               "name" : "#098"
+               "y" : 108
             },
             {
                "name" : "#099",
-               "y" : 97,
-               "drilldown" : "099"
+               "drilldown" : "099",
+               "y" : 97
             },
             {
-               "drilldown" : "100",
                "y" : 120,
+               "drilldown" : "100",
                "name" : "#100"
             },
             {
                "name" : "#101",
-               "y" : 83,
-               "drilldown" : "101"
+               "drilldown" : "101",
+               "y" : 83
             },
             {
+               "drilldown" : "102",
                "name" : "#102",
-               "y" : 90,
-               "drilldown" : "102"
+               "y" : 90
             },
             {
-               "y" : 79,
                "drilldown" : "103",
-               "name" : "#103"
+               "name" : "#103",
+               "y" : 79
             },
             {
-               "y" : 85,
                "drilldown" : "104",
-               "name" : "#104"
+               "name" : "#104",
+               "y" : 85
             },
             {
-               "name" : "#105",
                "drilldown" : "105",
+               "name" : "#105",
                "y" : 75
             },
             {
-               "name" : "#106",
                "y" : 97,
-               "drilldown" : "106"
+               "drilldown" : "106",
+               "name" : "#106"
             },
             {
-               "name" : "#107",
                "drilldown" : "107",
+               "name" : "#107",
                "y" : 90
             },
             {
-               "name" : "#108",
                "drilldown" : "108",
+               "name" : "#108",
                "y" : 94
             },
             {
-               "name" : "#109",
                "drilldown" : "109",
-               "y" : 107
+               "y" : 107,
+               "name" : "#109"
             },
             {
-               "y" : 108,
+               "name" : "#110",
                "drilldown" : "110",
-               "name" : "#110"
+               "y" : 108
             },
             {
                "name" : "#111",
@@ -584,63 +558,63 @@
                "y" : 91
             },
             {
-               "name" : "#112",
+               "y" : 92,
                "drilldown" : "112",
-               "y" : 92
+               "name" : "#112"
             },
             {
-               "name" : "#113",
+               "y" : 92,
                "drilldown" : "113",
-               "y" : 92
+               "name" : "#113"
             },
             {
                "name" : "#114",
-               "y" : 108,
-               "drilldown" : "114"
+               "drilldown" : "114",
+               "y" : 108
             },
             {
-               "name" : "#115",
+               "drilldown" : "115",
                "y" : 96,
-               "drilldown" : "115"
+               "name" : "#115"
             },
             {
-               "name" : "#116",
+               "y" : 95,
                "drilldown" : "116",
-               "y" : 95
+               "name" : "#116"
             },
             {
-               "y" : 97,
+               "name" : "#117",
                "drilldown" : "117",
-               "name" : "#117"
+               "y" : 97
             },
             {
-               "name" : "#118",
                "drilldown" : "118",
-               "y" : 81
+               "y" : 81,
+               "name" : "#118"
             },
             {
-               "drilldown" : "119",
                "y" : 123,
+               "drilldown" : "119",
                "name" : "#119"
             },
             {
-               "y" : 114,
+               "name" : "#120",
                "drilldown" : "120",
-               "name" : "#120"
+               "y" : 114
             },
             {
-               "y" : 90,
                "drilldown" : "121",
-               "name" : "#121"
+               "name" : "#121",
+               "y" : 90
             },
             {
-               "y" : 108,
+               "name" : "#122",
                "drilldown" : "122",
-               "name" : "#122"
+               "y" : 108
             },
             {
-               "drilldown" : "123",
                "y" : 103,
+               "drilldown" : "123",
                "name" : "#123"
             },
             {
@@ -650,18 +624,18 @@
             },
             {