- Added solutions by Lubos Kolouch.

14 files changed, 1417 insertions, 1402 deletions

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 6b419c3643..572fc8b550 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -4,26 +4,6 @@
          "text" : "Total Solutions"
       }
    },
-   "title" : {
-      "text" : "The Weekly Challenge - 172"
-   },
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         }
-      }
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "tooltip" : {
-      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
-      "followPointer" : 1,
-      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>"
-   },
    "series" : [
       {
          "name" : "The Weekly Challenge - 172",
@@ -34,39 +14,44 @@
                "name" : "Cheok-Yin Fung"
             },
             {
+               "name" : "Flavio Poletti",
                "y" : 6,
-               "drilldown" : "Flavio Poletti",
-               "name" : "Flavio Poletti"
+               "drilldown" : "Flavio Poletti"
             },
             {
+               "name" : "James Smith",
                "drilldown" : "James Smith",
-               "y" : 3,
-               "name" : "James Smith"
+               "y" : 3
             },
             {
                "name" : "Jorg Sommrey",
-               "drilldown" : "Jorg Sommrey",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "Jorg Sommrey"
             },
             {
-               "name" : "Kjetil Skotheim",
                "y" : 2,
-               "drilldown" : "Kjetil Skotheim"
+               "drilldown" : "Kjetil Skotheim",
+               "name" : "Kjetil Skotheim"
             },
             {
-               "y" : 5,
+               "name" : "Laurent Rosenfeld",
                "drilldown" : "Laurent Rosenfeld",
-               "name" : "Laurent Rosenfeld"
+               "y" : 5
             },
             {
                "y" : 2,
+               "drilldown" : "Lubos Kolouch",
+               "name" : "Lubos Kolouch"
+            },
+            {
                "drilldown" : "Mark Anderson",
+               "y" : 2,
                "name" : "Mark Anderson"
             },
             {
-               "y" : 2,
+               "name" : "Mohammad S Anwar",
                "drilldown" : "Mohammad S Anwar",
-               "name" : "Mohammad S Anwar"
+               "y" : 2
             },
             {
                "name" : "Peter Campbell Smith",
@@ -79,13 +64,13 @@
                "name" : "Philippe Bricout"
             },
             {
-               "y" : 2,
+               "name" : "PokGoPun",
                "drilldown" : "PokGoPun",
-               "name" : "PokGoPun"
+               "y" : 2
             },
             {
-               "drilldown" : "Robert DiCicco",
                "y" : 4,
+               "drilldown" : "Robert DiCicco",
                "name" : "Robert DiCicco"
             },
             {
@@ -95,8 +80,8 @@
             },
             {
                "name" : "Roger Bell_West",
-               "y" : 5,
-               "drilldown" : "Roger Bell_West"
+               "drilldown" : "Roger Bell_West",
+               "y" : 5
             },
             {
                "name" : "Stephen G Lynn",
@@ -104,9 +89,9 @@
                "drilldown" : "Stephen G Lynn"
             },
             {
-               "name" : "Ulrich Rieke",
                "drilldown" : "Ulrich Rieke",
-               "y" : 4
+               "y" : 4,
+               "name" : "Ulrich Rieke"
             },
             {
                "name" : "W. Luis Mochan",
@@ -114,22 +99,42 @@
                "y" : 3
             },
             {
-               "name" : "Walt Mankowski",
+               "y" : 2,
                "drilldown" : "Walt Mankowski",
-               "y" : 2
+               "name" : "Walt Mankowski"
             }
          ],
          "colorByPoint" : 1
       }
    ],
+   "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
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "chart" : {
+      "type" : "column"
+   },
    "legend" : {
       "enabled" : 0
    },
+   "title" : {
+      "text" : "The Weekly Challenge - 172"
+   },
    "subtitle" : {
-      "text" : "[Champions: 18] Last updated at 2022-07-09 21:58:03 GMT"
+      "text" : "[Champions: 19] Last updated at 2022-07-09 22:05:31 GMT"
    },
-   "xAxis" : {
-      "type" : "category"
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
+      }
    },
    "drilldown" : {
       "series" : [
@@ -144,7 +149,6 @@
             "id" : "Cheok-Yin Fung"
          },
          {
-            "id" : "Flavio Poletti",
             "data" : [
                [
                   "Perl",
@@ -159,10 +163,11 @@
                   2
                ]
             ],
-            "name" : "Flavio Poletti"
+            "name" : "Flavio Poletti",
+            "id" : "Flavio Poletti"
          },
          {
-            "name" : "James Smith",
+            "id" : "James Smith",
             "data" : [
                [
                   "Perl",
@@ -173,30 +178,30 @@
                   1
                ]
             ],
-            "id" : "James Smith"
+            "name" : "James Smith"
          },
          {
+            "id" : "Jorg Sommrey",
+            "name" : "Jorg Sommrey",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "name" : "Jorg Sommrey",
-            "id" : "Jorg Sommrey"
+            ]
          },
          {
+            "id" : "Kjetil Skotheim",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Kjetil Skotheim",
-            "id" : "Kjetil Skotheim"
+            "name" : "Kjetil Skotheim"
          },
          {
-            "id" : "Laurent Rosenfeld",
+            "name" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl",
@@ -211,17 +216,27 @@
                   1
                ]
             ],
-            "name" : "Laurent Rosenfeld"
+            "id" : "Laurent Rosenfeld"
+         },
+         {
+            "id" : "Lubos Kolouch",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Lubos Kolouch"
          },
          {
             "id" : "Mark Anderson",
+            "name" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "name" : "Mark Anderson"
+            ]
          },
          {
             "id" : "Mohammad S Anwar",
@@ -238,7 +253,6 @@
             ]
          },
          {
-            "id" : "Peter Campbell Smith",
             "name" : "Peter Campbell Smith",
             "data" : [
                [
@@ -249,7 +263,8 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Peter Campbell Smith"
          },
          {
             "id" : "Philippe Bricout",
@@ -263,15 +278,16 @@
          },
          {
             "id" : "PokGoPun",
+            "name" : "PokGoPun",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "name" : "PokGoPun"
+            ]
          },
          {
+            "name" : "Robert DiCicco",
             "data" : [
                [
                   "Perl",
@@ -282,21 +298,19 @@
                   2
                ]
             ],
-            "name" : "Robert DiCicco",
             "id" : "Robert DiCicco"
          },
          {
+            "name" : "Robert Ransbottom",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Robert Ransbottom",
             "id" : "Robert Ransbottom"
          },
          {
-            "id" : "Roger Bell_West",
             "name" : "Roger Bell_West",
             "data" : [
                [
@@ -311,10 +325,10 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Roger Bell_West"
          },
          {
-            "id" : "Stephen G Lynn",
             "name" : "Stephen G Lynn",
             "data" : [
                [
@@ -329,9 +343,11 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Stephen G Lynn"
          },
          {
+            "id" : "Ulrich Rieke",
             "name" : "Ulrich Rieke",
             "data" : [
                [
@@ -342,8 +358,7 @@
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Ulrich Rieke"
+            ]
          },
          {
             "id" : "W. Luis Mochan",
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index eab2073a4a..59300d5790 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,15 +1,36 @@
 {
+   "legend" : {
+      "enabled" : "false"
+   },
    "xAxis" : {
       "labels" : {
          "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
          }
       },
       "type" : "category"
    },
+   "chart" : {
+      "type" : "column"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
    "series" : [
       {
+         "dataLabels" : {
+            "align" : "right",
+            "enabled" : "true",
+            "style" : {
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
+            },
+            "format" : "{point.y:.0f}",
+            "rotation" : -90,
+            "y" : 10,
+            "color" : "#FFFFFF"
+         },
          "name" : "Contributions",
          "data" : [
             [
@@ -18,45 +39,24 @@
             ],
             [
                "Perl",
-               8378
+               8380
             ],
             [
                "Raku",
                4979
             ]
-         ],
-         "dataLabels" : {
-            "enabled" : "true",
-            "rotation" : -90,
-            "format" : "{point.y:.0f}",
-            "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
-            },
-            "color" : "#FFFFFF",
-            "align" : "right",
-            "y" : 10
-         }
+         ]
       }
    ],
-   "subtitle" : {
-      "text" : "Last updated at 2022-07-09 21:58:03 GMT"
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
-   "chart" : {
-      "type" : "column"
-   },
    "yAxis" : {
       "title" : {
          "text" : null
       },
       "min" : 0
    },
+   "subtitle" : {
+      "text" : "Last updated at 2022-07-09 22:05:31 GMT"
+   },
    "title" : {
       "text" : "The Weekly Challenge Contributions [2019 - 2022]"
    }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index eee2d6ebf7..1335fcbc05 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,11 +1,18 @@
 {
-   "legend" : {
-      "enabled" : "false"
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "tooltip" : {
+      "followPointer" : "true",
+      "headerFormat" : "<span style=\"font-size:11px\"></span>",
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>"
    },
    "series" : [
       {
-         "colorByPoint" : "true",
          "name" : "The Weekly Challenge Languages",
+         "colorByPoint" : "true",
          "data" : [
             {
                "drilldown" : "001",
@@ -14,13 +21,13 @@
             },
             {
                "name" : "#002",
-               "drilldown" : "002",
-               "y" : 125
+               "y" : 125,
+               "drilldown" : "002"
             },
             {
                "name" : "#003",
-               "y" : 83,
-               "drilldown" : "003"
+               "drilldown" : "003",
+               "y" : 83
             },
             {
                "name" : "#004",
@@ -29,13 +36,13 @@
             },
             {
                "name" : "#005",
-               "drilldown" : "005",
-               "y" : 78
+               "y" : 78,
+               "drilldown" : "005"
             },
             {
-               "y" : 58,
+               "name" : "#006",
                "drilldown" : "006",
-               "name" : "#006"
+               "y" : 58
             },
             {
                "name" : "#007",
@@ -44,18 +51,18 @@
             },
             {
                "name" : "#008",
-               "y" : 78,
-               "drilldown" : "008"
+               "drilldown" : "008",
+               "y" : 78
             },
             {
                "name" : "#009",
-               "drilldown" : "009",
-               "y" : 76
+               "y" : 76,
+               "drilldown" : "009"
             },
             {
-               "name" : "#010",
                "y" : 65,
-               "drilldown" : "010"
+               "drilldown" : "010",
+               "name" : "#010"
             },
             {
                "drilldown" : "011",
@@ -63,9 +70,9 @@
                "name" : "#011"
             },
             {
-               "y" : 89,
+               "name" : "#012",
                "drilldown" : "012",
-               "name" : "#012"
+               "y" : 89
             },
             {
                "drilldown" : "013",
@@ -73,23 +80,23 @@
                "name" : "#013"
             },
             {
+               "name" : "#014",
                "y" : 101,
-               "drilldown" : "014",
-               "name" : "#014"
+               "drilldown" : "014"
             },
             {
-               "y" : 99,
+               "name" : "#015",
                "drilldown" : "015",
-               "name" : "#015"
+               "y" : 99
             },
             {
+               "name" : "#016",
                "y" : 71,
-               "drilldown" : "016",
-               "name" : "#016"
+               "drilldown" : "016"
             },
             {
-               "y" : 84,
                "drilldown" : "017",
+               "y" : 84,
                "name" : "#017"
             },
             {
@@ -98,29 +105,29 @@
                "name" : "#018"
             },
             {
-               "name" : "#019",
                "drilldown" : "019",
-               "y" : 103
+               "y" : 103,
+               "name" : "#019"
             },
             {
-               "y" : 101,
                "drilldown" : "020",
+               "y" : 101,
                "name" : "#020"
             },
             {
                "name" : "#021",
-               "y" : 72,
-               "drilldown" : "021"
+               "drilldown" : "021",
+               "y" : 72
             },
             {
-               "name" : "#022",
                "y" : 68,
-               "drilldown" : "022"
+               "drilldown" : "022",
+               "name" : "#022"
             },
             {
                "name" : "#023",
-               "drilldown" : "023",
-               "y" : 97
+               "y" : 97,
+               "drilldown" : "023"
             },
             {
                "y" : 75,
@@ -133,34 +140,34 @@
                "name" : "#025"
             },
             {
-               "name" : "#026",
                "y" : 74,
-               "drilldown" : "026"
+               "drilldown" : "026",
+               "name" : "#026"
             },
             {
-               "drilldown" : "027",
                "y" : 62,
+               "drilldown" : "027",
                "name" : "#027"
             },
             {
-               "name" : "#028",
+               "y" : 82,
                "drilldown" : "028",
-               "y" : 82
+               "name" : "#028"
             },
             {
+               "name" : "#029",
                "y" : 81,
-               "drilldown" : "029",
-               "name" : "#029"
+               "drilldown" : "029"
             },
             {
+               "name" : "#030",
                "y" : 119,
-               "drilldown" : "030",
-               "name" : "#030"
+               "drilldown" : "030"
             },
             {
-               "drilldown" : "031",
+               "name" : "#031",
                "y" : 91,
-               "name" : "#031"
+               "drilldown" : "031"
             },
             {
                "name" : "#032",
@@ -168,59 +175,59 @@
                "drilldown" : "032"
             },
             {
-               "drilldown" : "033",
+               "name" : "#033",
                "y" : 112,
-               "name" : "#033"
+               "drilldown" : "033"
             },
             {
+               "name" : "#034",
                "drilldown" : "034",
-               "y" : 66,
-               "name" : "#034"
+               "y" : 66
             },
             {
-               "drilldown" : "035",
                "y" : 66,
+               "drilldown" : "035",
                "name" : "#035"
             },
             {
-               "name" : "#036",
+               "y" : 70,
                "drilldown" : "036",
-               "y" : 70
+               "name" : "#036"
             },
             {
-               "y" : 69,
                "drilldown" : "037",
+               "y" : 69,
                "name" : "#037"
             },
             {
                "name" : "#038",
-               "drilldown" : "038",
-               "y" : 70
+               "y" : 70,
+               "drilldown" : "038"
             },
             {
+               "name" : "#039",
                "y" : 64,
-               "drilldown" : "039",
-               "name" : "#039"
+               "drilldown" : "039"
             },
             {
+               "name" : "#040",
                "y" : 75,
-               "drilldown" : "040",
-               "name" : "#040"
+               "drilldown" : "040"
             },
             {
-               "name" : "#041",
+               "drilldown" : "041",
                "y" : 78,
-               "drilldown" : "041"
+               "name" : "#041"
             },
             {
-               "y" : 94,
+               "name" : "#042",
                "drilldown" : "042",
-               "name" : "#042"
+               "y" : 94
             },
             {
-               "name" : "#043",
+               "drilldown" : "043",
                "y" : 70,
-               "drilldown" : "043"
+               "name" : "#043"
             },
             {
                "y" : 87,
@@ -228,13 +235,13 @@
                "name" : "#044"
             },
             {
-               "name" : "#045",
+               "drilldown" : "045",
                "y" : 98,
-               "drilldown" : "045"
+               "name" : "#045"
             },
             {
-               "y" : 89,
                "drilldown" : "046",
+               "y" : 89,
                "name" : "#046"
             },
             {
@@ -244,8 +251,8 @@
             },
             {
                "name" : "#048",
-               "y" : 110,
-               "drilldown" : "048"
+               "drilldown" : "048",
+               "y" : 110
             },
             {
                "name" : "#049",
@@ -254,43 +261,43 @@
             },
             {
                "name" : "#050",
-               "y" : 100,
-               "drilldown" : "050"
+               "drilldown" : "050",
+               "y" : 100
             },
             {
-               "name" : "#051",
+               "y" : 91,
                "drilldown" : "051",
-               "y" : 91
+               "name" : "#051"
             },
             {
-               "name" : "#052",
                "y" : 93,
-               "drilldown" : "052"
+               "drilldown" : "052",
+               "name" : "#052"
             },
             {
+               "name" : "#053",
                "y" : 103,
-               "drilldown" : "053",
-               "name" : "#053"
+               "drilldown" : "053"
             },
             {
-               "y" : 105,
                "drilldown" : "054",
+               "y" : 105,
                "name" : "#054"
             },
             {
-               "name" : "#055",
+               "y" : 90,
                "drilldown" : "055",
-               "y" : 90
+               "name" : "#055"
             },
             {
-               "drilldown" : "056",
+               "name" : "#056",
                "y" : 97,
-               "name" : "#056"
+               "drilldown" : "056"
             },
             {
                "name" : "#057",
-               "y" : 82,
-               "drilldown" : "057"
+               "drilldown" : "057",
+               "y" : 82
             },
             {
                "name" : "#058",
@@ -298,34 +305,34 @@
                "drilldown" : "058"
             },
             {
-               "y" : 91,
+               "name" : "#059",
                "drilldown" : "059",
-               "name" : "#059"
+               "y" : 91
             },
             {
+               "name" : "#060",
                "y" : 87,
-               "drilldown" : "060",
-               "name" : "#060"
+               "drilldown" : "060"
             },
             {
                "name" : "#061",
-               "y" : 83,
-               "drilldown" : "061"
+               "drilldown" : "061",
+               "y" : 83
             },
             {
                "name" : "#062",
-               "y" : 60,
-               "drilldown" : "062"
+               "drilldown" : "062",
+               "y" : 60
             },
             {
-               "y" : 91,
                "drilldown" : "063",
+               "y" : 91,
                "name" : "#063"
             },
             {
-               "name" : "#064",
+               "y" : 82,
                "drilldown" : "064",
-               "y" : 82
+               "name" : "#064"
             },
             {
                "drilldown" : "065",
@@ -339,13 +346,13 @@
             },
             {
                "name" : "#067",
-               "drilldown" : "067",
-               "y" : 92
+               "y" : 92,
+               "drilldown" : "067"
             },
             {
-               "y" : 77,
+               "name" : "#068",
                "drilldown" : "068",
-               "name" : "#068"
+               "y" : 77
             },
             {
                "y" : 85,
@@ -354,13 +361,13 @@
             },
             {
                "name" : "#070",
-               "y" : 95,
-               "drilldown" : "070"
+               "drilldown" : "070",
+               "y" : 95
             },
             {
+               "name" : "#071",
                "drilldown" : "071",
-               "y" : 80,
-               "name" : "#071"
+               "y" : 80
             },
             {
                "name" : "#072",
@@ -368,14 +375,14 @@
                "y" : 114
             },
             {
-               "name" : "#073",
+               "drilldown" : "073",
                "y" : 112,
-               "drilldown" : "073"
+               "name" : "#073"
             },
             {
-               "name" : "#074",
+               "y" : 117,
                "drilldown" : "074",
-               "y" : 117
+               "name" : "#074"
             },
             {
                "name" : "#075",
@@ -384,17 +391,17 @@
             },
             {
                "name" : "#076",
-               "drilldown" : "076",
-               "y" : 101
+               "y" : 101,
+               "drilldown" : "076"
             },
             {
+               "name" : "#077",
                "drilldown" : "077",
-               "y" : 100,
-               "name" : "#077"
+               "y" : 100
             },
             {
-               "y" : 127,
                "drilldown" : "078",
+               "y" : 127,
                "name" : "#078"
             },
             {
@@ -403,9 +410,9 @@
                "name" : "#079"
             },
             {
-               "name" : "#080",
+               "y" : 127,
                "drilldown" : "080",
-               "y" : 127
+               "name" : "#080"
             },
             {
                "name" : "#081",
@@ -413,13 +420,13 @@
                "y" : 114
             },
             {
+               "name" : "#082",
                "drilldown" : "082",
-               "y" : 114,
-               "name" : "#082"
+               "y" : 114
             },
             {
-               "drilldown" : "083",
                "y" : 127,
+               "drilldown" : "083",
                "name" : "#083"
             },
             {
@@ -429,18 +436,18 @@
             },
             {
                "name" : "#085",
-               "y" : 114,
-               "drilldown" : "085"
+               "drilldown" : "085",
+               "y" : 114
             },
             {
-               "drilldown" : "086",
+               "name" : "#086",
                "y" : 104,
-               "name" : "#086"
+               "drilldown" : "086"
             },
             {
                "name" : "#087",
-               "y" : 101,
-               "drilldown" : "087"
+               "drilldown" : "087",
+               "y" : 101
             },
             {
                "name" : "#088",
@@ -448,9 +455,9 @@
                "y" : 121
             },
             {
-               "y" : 113,
+               "name" : "#089",
                "drilldown" : "089",
-               "name" : "#089"
+               "y" : 113
             },
             {
                "name" : "#090",
@@ -474,18 +481,18 @@
             },
             {
                "name" : "#094",
-               "y" : 87,
-               "drilldown" : "094"
+               "drilldown" : "094",
+               "y" : 87
             },
             {
+               "name" : "#095",
                "drilldown" : "095",
-               "y" : 108,
-               "name" : "#095"
+               "y" : 108
             },
             {
                "name" : "#096",
-               "y" : 108,
-               "drilldown" : "096"
+               "drilldown" : "096",
+               "y" : 108
             },
             {
                "name" : "#097",
@@ -493,29 +500,29 @@
                "drilldown" : "097"
             },
             {
-               "name" : "#098",
                "drilldown" : "098",
-               "y" : 108
+               "y" : 108,
+               "name" : "#098"
             },
             {
-               "y" : 97,
                "drilldown" : "099",
+               "y" : 97,
                "name" : "#099"
             },
             {
-               "y" : 120,
                "drilldown" : "100",
+               "y" : 120,
                "name" : "#100"
             },
             {
-               "y" : 83,
+               "name" : "#101",
                "drilldown" : "101",
-               "name" : "#101"
+               "y" : 83
             },
             {
-               "name" : "#10