Demo 10

Demo10/.idea/.idea.Demo10/.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml
+# Rider ignored files
+/modules.xml
+/contentModel.xml
+/.idea.Demo10.iml
+/projectSettingsUpdater.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

Demo10/.idea/.idea.Demo10/.idea/encodings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with BOM under Windows, with no BOM otherwise" />
+</project>
\ No newline at end of file

Demo10/.idea/.idea.Demo10/.idea/indexLayout.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="UserContentModel">
+    <attachedFolders />
+    <explicitIncludes />
+    <explicitExcludes />
+  </component>
+</project>
\ No newline at end of file

Demo10/.idea/.idea.Demo10/.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

Demo10/.idea/.idea.demo10-uusi/.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml
+# Rider ignored files
+/modules.xml
+/.idea.demo10-uusi.iml
+/projectSettingsUpdater.xml
+/contentModel.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

Demo10/.idea/.idea.demo10-uusi/.idea/.name

+demo10-uusi
\ No newline at end of file

Demo10/.idea/.idea.demo10-uusi/.idea/encodings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with BOM under Windows, with no BOM otherwise" />
+</project>
\ No newline at end of file

Demo10/.idea/.idea.demo10-uusi/.idea/indexLayout.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="UserContentModel">
+    <attachedFolders />
+    <explicitIncludes />
+    <explicitExcludes />
+  </component>
+</project>
\ No newline at end of file

Demo10/.idea/.idea.demo10-uusi/.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

Demo10/B12-Pallopuu/B12-Pallopuu.csproj

+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>WinExe</OutputType>
+        <TargetFrameworks>net5.0</TargetFrameworks>
+        <PublishReadyToRun>false</PublishReadyToRun>
+        <TieredCompilation>false</TieredCompilation>
+        <RootNamespace>T12-Pallopuu</RootNamespace>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Jypeli.NET" Version="10.*" />
+        <PackageReference Include="Jypeli.FarseerPhysics.NET" Version="1.0.*" />
+    </ItemGroup>
+
+</Project>
+

Demo10/B12-Pallopuu/Ohjelma.cs

+#region Using Statements
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+#endregion
+
+namespace Program
+{
+    /// <summary>
+    /// The main class.
+    /// </summary>
+    public static class Program
+    {
+        /// <summary>
+        /// The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            using (var game = new T12_Pallopuu())
+                game.Run();
+        }
+    }
+}

Demo10/B12-Pallopuu/T12-Pallopuu.cs

+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Jypeli;
+using Jypeli.Widgets;
+
+/// @author Antti-Jussi Lakanen
+/// @version 2025
+/// 
+/// <summary>
+/// Tehtävä Bonus 1-2. Palloja rekursiivisesti.
+/// </summary>
+public class T12_Pallopuu : Game
+{
+    const double PIENIN_SADE = 4.0;
+
+    /// <summary>
+    /// Kutsutaan rekursiivista aliohejlmaa.
+    /// </summary>
+    public override void Begin()
+    {
+        bool lisahienoudet = true;
+        if (!lisahienoudet)
+        {
+            Pallo(0, 150, 100, Math.PI / 2);
+        }
+        else
+        {
+
+            List<GameObject> pallot = new List<GameObject>();
+            Pallo(0, 0, 100, 0.5, Math.PI / 2, Math.PI / 8, pallot);
+
+            DoubleMeter kulmaMeter = new DoubleMeter(Math.PI / 8, 0, Math.PI);
+            DoubleMeter suuntaMeter = new DoubleMeter(Math.PI / 2, 0, Math.PI);
+            DoubleMeter kokoMeter = new DoubleMeter(0.5, 0.05, 0.7);
+
+            kulmaMeter.Changed += PiirraUudestaan;
+            suuntaMeter.Changed += PiirraUudestaan;
+            kokoMeter.Changed += PiirraUudestaan;
+
+            void PiirraUudestaan(double vanhaArvo, double uusiArvo)
+            {
+                pallot.ForEach(x => x.Destroy());
+                pallot.Clear();
+                Pallo(0, 0, 100, kokoMeter.Value, suuntaMeter.Value, kulmaMeter.Value, pallot);
+            };
+
+            Slider kulmaSlider = new Slider(150, 15)
+            {
+                Position = new Vector(0, -100),
+                Color = Color.Black
+            };
+            kulmaSlider.BindTo(kulmaMeter);
+            Add(kulmaSlider);
+            Label kulmaLabel = new Label
+            {
+                DoubleFormatString = "Kulma: +/- {0:N2}",
+                Color = Color.Black,
+                TextColor = Color.White,
+                Position = new Vector(kulmaSlider.X, kulmaSlider.Top + 15)
+            };
+            kulmaLabel.BindTo(kulmaSlider.Meter);
+            Add(kulmaLabel);
+
+            Slider suuntaSlider = new Slider(150, 15)
+            {
+                Left = kulmaSlider.Left,
+                Color = Color.Black
+            };
+            suuntaSlider.Bottom = kulmaLabel.Top + suuntaSlider.Height * 2;
+            Add(suuntaSlider);
+            suuntaSlider.BindTo(suuntaMeter);
+            Label suuntaLabel = new Label
+            {
+                TextColor = Color.White,
+                Color = Color.Black,
+                Position = new Vector(suuntaSlider.X, suuntaSlider.Top + 15),
+                DoubleFormatString = "Suunta:  {0:N2}"
+            };
+            suuntaLabel.BindTo(suuntaSlider.Meter);
+            Add(suuntaLabel);
+
+            Slider kokoSlider = new Slider(150, 15)
+            {
+                Left = suuntaSlider.Left,
+                Top = kulmaSlider.Bottom - 60,
+                Color = Color.Black
+            };
+            kokoSlider.BindTo(kokoMeter);
+            Add(kokoSlider);
+            Label kokoLabel = new Label
+            {
+                Color = Color.Black,
+                TextColor = Color.White,
+                Position = new Vector(kokoSlider.X, kokoSlider.Top + 15),
+                DoubleFormatString = "Kokokerroin:  {0:N2}"
+            };
+            kokoLabel.BindTo(kokoSlider.Meter);
+            Add(kokoLabel);
+        }
+
+        Mouse.IsCursorVisible = true;
+
+        Keyboard.Listen(Key.F1, ButtonState.Pressed, ShowControlHelp, null);
+
+        SetWindowSize(800, 600);
+        Level.BackgroundColor = Color.DarkBlue;
+        Camera.ZoomToAllObjects(100);
+    }
+
+    /// <summary>
+    /// Tehdaan pallo, ja sen ylapuolelle kaksi muuta palloa
+    /// rekursiivisesti.
+    /// </summary>
+    /// <param name="x">Pallon kp x-koordinaatti</param>
+    /// <param name="y">Pallon kp y-koordinaatti</param>
+    /// <param name="sade">Pallon sade</param>
+    /// <param name="suunta">Suunta radiaaneina</param>
+    public void Pallo(double x, double y, double sade, double suunta)
+    {
+        //jos pallon koko < 4 lopeta
+        if (sade < PIENIN_SADE) return;
+
+        //pallo pisteeseen (x,y)
+        GameObject pallo = new GameObject(sade * 2, sade * 2, Shape.Circle);
+        pallo.Position = new Vector(x, y);
+        pallo.Color = RandomGen.NextColor();
+        Add(pallo);
+
+
+        // määrittele uusikoko itse ...
+        double r = sade * 0.5;
+        // määrittele suunnat itse ...
+        double vasenSuunta = suunta + Math.PI / 8;
+        double oikeaSuunta = suunta - Math.PI / 8;
+
+        Pallo(x + Math.Cos(vasenSuunta) * sade + Math.Cos(vasenSuunta)
+            * r, y + Math.Sin(vasenSuunta) * sade + Math.Sin(vasenSuunta)
+            * r, r, vasenSuunta);
+
+        Pallo(x + Math.Cos(oikeaSuunta) * sade + Math.Cos(oikeaSuunta)
+            * r, y + Math.Sin(oikeaSuunta) * sade + Math.Sin(oikeaSuunta)
+            * r, r, oikeaSuunta);
+    }
+
+    /// <summary>
+    /// Tehdaan pallo, ja sen ylapuolelle kaksi muuta palloa
+    /// rekursiivisesti.
+    /// </summary>
+    /// <param name="x">Pallon kp x-koordinaatti</param>
+    /// <param name="y">Pallon kp y-koordinaatti</param>
+    /// <param name="sade">Pallon sade</param>
+    /// <param name="sadeKerroin">Sädekerroin</param>
+    /// <param name="suunta">Suunta radiaaneina</param>
+    /// <param name="kulma">Kulma</param>
+    /// <param name="pallot">Pallot-lista</param>
+    public void Pallo(double x, double y, double sade, double sadeKerroin, double suunta, double kulma, List<GameObject> pallot)
+    {
+        //pallo pisteeseen (x,y)
+        GameObject pallo = new GameObject(sade * 2, sade * 2, Shape.Circle);
+        pallo.Position = new Vector(x, y);
+        Add(pallo);
+        pallot.Add(pallo);
+
+        if (sade < PIENIN_SADE) return;
+        if (pallot.Count > 500) return;
+        //jos pallon koko < 4 lopeta
+
+        // määrittele uusikoko itse ...
+        double r = sade * sadeKerroin;
+        // määrittele suunnat itse ...
+        double vasenSuunta = suunta + kulma;
+        double oikeaSuunta = suunta - kulma;
+
+        Pallo(x + Math.Cos(vasenSuunta) * sade + Math.Cos(vasenSuunta)
+            * r, y + Math.Sin(vasenSuunta) * sade + Math.Sin(vasenSuunta)
+            * r, r, sadeKerroin, vasenSuunta, kulma, pallot);
+
+        Pallo(x + Math.Cos(oikeaSuunta) * sade + Math.Cos(oikeaSuunta)
+            * r, y + Math.Sin(oikeaSuunta) * sade + Math.Sin(oikeaSuunta)
+            * r, r, sadeKerroin, oikeaSuunta, kulma, pallot);
+    }
+
+}
\ No newline at end of file

Demo10/B34-Valuutat/B12-Valuutat.cs

+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.IO;
+using System.Text;
+
+
+/// <summary>
+/// Bonus 3-4. Ohjelmassa luetaan valuuttakursseja tiedostosta ja tulostetaan
+/// niista kayttajan antama valuutta.
+/// </summary>
+public class B12_Valuutat
+{
+    /// <summary>
+    /// Luetaan valuutat-tiedosto ja
+    /// pyydetään käyttäjältä syöte ja tulostellaan 
+    /// tuloksia sen mukaan.
+    /// </summary>
+    /// <param name="args">ei käytössä</param>
+    public static void Main(string[] args)
+    {
+        string[] valuuttalista;
+        try
+        {
+            valuuttalista = File.ReadAllLines("valuutat.xls");
+        }
+        catch (IOException ex)
+        {
+            Console.Error.WriteLine("Virhe: " + ex.Message);
+            return;
+        }
+
+        KyseleValuuttoja(valuuttalista);
+    }
+
+
+    /// <summary>
+    /// Kysellään käyttäjältä valuuttoja kunnes annetaan tyhjä rivi
+    /// </summary>
+    /// <param name="valuuttalista">Lista josta valuuttoja etsitään</param>
+    public static void KyseleValuuttoja(IList<string> valuuttalista)
+    {
+        while (true)
+        {
+            Console.Write("Anna valuutta >");
+            string valuutta = Console.ReadLine();
+            if (valuutta.Length == 0) break;
+            TulostaValuutta(valuuttalista, valuutta);
+        }
+    }
+
+
+    /// <summary>
+    /// Tulostetaan valuutta, joka vastaa hakujonoa valuutta
+    /// </summary>
+    /// <param name="valuuttalista">Valuutat</param>
+    /// <param name="valuutta">etsittävä valuutta</param>
+    public static void TulostaValuutta(IList<string> valuuttalista, string valuutta)
+    {
+        string isolla = valuutta.ToUpper();
+        
+        foreach (string v in valuuttalista)
+        {                              
+            // huomaa, etta valuutta voi olla
+            // muukin kuin valuuttatunnuksen.
+            if (v.Contains(isolla))  
+            {
+                string[] tiedot = v.Split(',');
+                // Erottelun jälkeen tiedot ovat järjestyksessä: 
+                // 0: Valuuttatunnus
+                // 1: Keskikurssi
+                // 2: Myynti
+                // 3: Osto
+                // 4: Ajankohta
+                Console.WriteLine($"{tiedot[0]}: Keskikurssi {double.Parse(tiedot[1])}. Myynti {double.Parse(tiedot[2])}. Osto {double.Parse(tiedot[3])}. ({tiedot[4]})");
+            }
+        }                              
+    }
+}
\ No newline at end of file

Demo10/B34-Valuutat/B34-Valuutat.csproj

+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>netcoreapp3.1</TargetFramework>
+        <ExternalConsole>true</ExternalConsole>
+        <RootNamespace>B1_2-Valuutat</RootNamespace>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <None Update="valuutat.xls">
+        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      </None>
+    </ItemGroup>
+
+</Project>
+

Demo10/B34-Valuutat/valuutat.xls

+EUR,000001.000000,000001.000000,000001.000000,23/03/2023,08:00
+USD,000001.090550,000001.067100,000001.114000,23/03/2023,08:00
+JPY,000142.624000,000139.552000,000145.696000,23/03/2023,08:00
+GBP,000000.884815,000000.865230,000000.904400,23/03/2023,08:00
+SEK,000011.177250,000010.934000,000011.420500,23/03/2023,08:00
+NOK,000011.333555,000011.072420,000011.594690,23/03/2023,08:00
+DKK,000007.446300,000007.287300,000007.605300,23/03/2023,08:00
+CHF,000000.998500,000000.976900,000001.020100,23/03/2023,08:00
+CAD,000001.490650,000001.458400,000001.522900,23/03/2023,08:00
+HKD,000008.559845,000008.316290,000008.803400,23/03/2023,08:00
+AUD,000001.619025,000001.583570,000001.654480,23/03/2023,08:00
+NZD,000001.736275,000001.696510,000001.776040,23/03/2023,08:00
+ZAR,000019.796325,000019.213050,000020.379600,23/03/2023,08:00
+SAR,000004.096650,000003.965300,000004.228000,23/03/2023,08:00
+MAD,000011.144900,000010.759700,000011.530100,23/03/2023,08:00
+KWD,000000.333630,000000.324100,000000.343160,23/03/2023,08:00
+AED,000003.963250,000003.849700,000004.076800,23/03/2023,08:00
+SGD,000001.444425,000001.406140,000001.482710,23/03/2023,08:00
+INR,000089.630000,000086.550000,000092.710000,23/03/2023,08:00
+CZK,000023.686700,000023.047700,000024.325700,23/03/2023,08:00
+PLN,000004.682775,000004.554480,000004.811070,23/03/2023,08:00
+HUF,000387.014000,000376.131000,000397.897000,23/03/2023,08:00
+THB,000037.177000,000036.086000,000038.268000,23/03/2023,08:00
+BGN,000001.955850,000001.906800,000002.004900,23/03/2023,08:00
+CNH,000007.439300,000007.439300,000007.439300,23/03/2023,08:00
+ILS,000003.941365,000003.817480,000004.065250,23/03/2023,08:00
+MXN,000020.179350,000019.596300,000020.762400,23/03/2023,08:00
+RON,000004.918880,000004.772550,000005.065210,23/03/2023,08:00
+RSD,000117.300000,000113.900000,000120.700000,23/03/2023,08:00
+TRY,000020.794350,000020.002570,000021.586130,23/03/2023,08:00

Demo10/B3_4-NYliK/B3_4-NYliK.csproj

+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>netcoreapp3.1</TargetFramework>
+        <ExternalConsole>true</ExternalConsole>
+    </PropertyGroup>
+
+</Project>
+

Demo10/B3_4-NYliK/T45-NYliK.cs

+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Numerics;
+
+/// <summary>
+/// Tehtävä 4-5. Lasketaan n yli k eli k-kombinaatioita.
+/// </summary>
+public class T45_NYliK
+{
+    /// <summary>
+    /// Aliohjelmakutsuja ja tulostusta.
+    /// </summary>
+    /// <param name="args">Ei kaytossa.</param>
+    public static void Main(string[] args)
+    {
+        long l = NYliK(40, 7);
+        Console.WriteLine(l);
+        BigInteger b = BigNYliK(40, 7);
+        Console.WriteLine(b);
+
+
+        // Esimerkki lukualueen ylityksestä. 
+
+        int a = int.MaxValue;
+        Console.WriteLine(a);
+        a++; // lukualueen ylitys. Huom! Ei käännösvirhe eikä ajonaikainen virhe.
+        Console.WriteLine(a);
+
+        // 40! käyttäen BigIntegeriä.
+        // BigInteger bi = new BigInteger(1);
+        // for (int i = 1; i <= 40; i++)
+        // {
+        //     bi *= i;
+        // }
+        // Console.WriteLine(bi.ToString());
+    }
+
+    /// <summary>
+    /// Antaa n yli k:n, ts. C(n, k).
+    /// Ks. http://fi.wikipedia.org/wiki/Kombinaatio
+    /// Esim. kuinka monta erilaista 7 luvun ryhmää voidaan
+    /// muodostaa 40 luvun joukosta:
+    ///  40         40!          34*35*36*37*38*39*40
+    /// (  )  = ------------  =  -------------------- = 18643560
+    ///   7     7! * (40-7)!        1*2*3*4*5*6*7
+    ///   
+    /// Aliohjelma laskee tuloksen käyttäen viimeistä
+    /// muotoa.
+    /// </summary>
+    /// <param name="n">n</param>
+    /// <param name="k">k</param>
+    /// <returns>n yli k:n</returns>
+    /// <example>
+    /// <pre name="test">
+    /// Kombinaatio.NYliK(40, 7) === 18643560;
+    /// Kombinaatio.NYliK(39, 7) === 15380937;
+    /// Kombinaatio.NYliK(1, 1) === 1;
+    /// Kombinaatio.NYliK(1, 0) === 1;
+    /// Kombinaatio.NYliK(1, 0) === 1;
+    /// </pre>
+    /// </example>
+    public static long NYliK(int n, int k)
+    {
+        long osoittaja = Kerro(n - k + 1, n);
+        long nimittaja = Kerro(1, k);
+        return osoittaja / nimittaja;
+    }
+
+    /// <summary>
+    /// Kerrotaan keskenään luvut alku, alku+1, ..., loppu.
+    /// Jos loppu > alku, palautetaan 1. Lukujen ollessa
+    /// yhtä suuria palautetaan alku.
+    /// </summary>
+    /// <param name="alku">Mistä luvusta aloitetaan.</param>
+    /// <param name="loppu">Mihin lukuun lopetetaan.</param>
+    /// <returns>Lukujen tulo.</returns>
+    /// <example>
+    /// <pre name="test">
+    /// Kerro(1, 1) === 1;
+    /// Kerro(1, 5) === 120;
+    /// Kerro(7, 10) === 5040;
+    /// Kerro(0, 5) === 0;
+    /// Kerro(3, 1) === 1;
+    /// Kerro(5, 2) === 1;
+    /// Kerro(5, 5) === 5;
+    /// </pre>
+    /// </example>
+    public static long Kerro(int alku, int loppu)
+    {
+        long tulos = 1;
+        for (int i = alku; i <= loppu; i++)
+        {
+            tulos *= i; // Esimerkiksi osoittaja meidän esimerkissämme: 34 * 35 * ... * 40
+            // (Tai nimittäjä meidän esimerkissämme: 1 * 2 * ... * 7)
+        }
+        return tulos;
+    }
+
+    /// <summary>
+    /// Kerrotaan keskenään luvut alku, alku+1, ..., loppu.
+    /// Jos loppu > alku, palautetaan 1. Lukujen ollessa
+    /// yhtä suuria palautetaan alku.
+    /// http://msdn.microsoft.com/en-us/library/system.numerics.biginteger.aspx
+    /// </summary>
+    /// <param name="alku">Mistä luvusta aloitetaan.</param>
+    /// <param name="loppu">Mihin lukuun lopetetaan.</param>
+    /// <returns>Lukujen tulo.</returns>
+    /// <example>     
+    /// <pre name="test">
+    /// Kerro(1, 1) === (BigInteger) 1;
+    /// Kerro(1, 5) === (BigInteger) 120;
+    /// Kerro(7, 10) === (BigInteger) 5040;
+    /// Kerro(0, 5) === (BigInteger) 0;
+    /// Kerro(1, 0) === (BigInteger) 1;
+    /// Kerro(3, 1) === (BigInteger) 1;
+    /// Kerro(5, 2) === (BigInteger) 1;
+    /// Kerro(5, 5) === (BigInteger) 5;
+    /// </pre>
+    /// </example>     
+    public static BigInteger BigKerro(int alku, int loppu)
+    {
+        BigInteger tulos = 1;
+        for (int i = alku; i <= loppu; i++)
+        {
+            tulos *= i;
+        }
+        return tulos;
+    }
+
+    /// <summary>
+    /// Antaa n yli k:n, ts. C(n, k).
+    /// Ks. http://fi.wikipedia.org/wiki/Kombinaatio
+    /// Esim. kuinka monta erilaista 7 luvun ryhmää voidaan
+    /// muodostaa 40 luvun joukosta:
+    ///  40         40!          34*35*36*37*38*39*40
+    /// (  )  = ------------  =  -------------------- = 18643560
+    ///   7     7! * (40-7)!        1*2*3*4*5*6*7
+    ///   
+    /// Aliohjelma laskee tuloksen käyttäen viimeistä
+    /// muotoa.
+    /// </summary>
+    /// <param name="n">n</param>
+    /// <param name="k">k</param>
+    /// <returns>n yli k:n</returns>
+    /// <example>     
+    /// <pre name="test">
+    /// NYliK(40, 7) === (BigInteger) 18643560;
+    /// NYliK(39, 7) === (BigInteger) 15380937;
+    /// NYliK(1, 1) === (BigInteger) 1;
+    /// NYliK(1, 0) === (BigInteger) 1;
+    /// NYliK(0, 1) === (BigInteger) 0;
+    /// </pre>
+    /// </example>     
+    public static BigInteger BigNYliK(int n, int k)
+    {
+        BigInteger osoittaja = BigKerro(n - k + 1, n);
+        BigInteger nimittaja = BigKerro(1, k);
+        return osoittaja / nimittaja;
+    }
+}

Demo10/Demo10.sln

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