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diff --git a/20250122/Kor/.vs/Kor/FileContentIndex/e31f9e0a-0acb-4620-9972-0d967463f03a.vsidx b/20250122/Kor/.vs/Kor/FileContentIndex/e31f9e0a-0acb-4620-9972-0d967463f03a.vsidx
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diff --git a/20250122/Kor/.vs/Kor/v17/.suo b/20250122/Kor/.vs/Kor/v17/.suo
new file mode 100644
index 0000000..365e147
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diff --git a/20250122/Kor/.vs/Kor/v17/DocumentLayout.backup.json b/20250122/Kor/.vs/Kor/v17/DocumentLayout.backup.json
new file mode 100644
index 0000000..ca09908
--- /dev/null
+++ b/20250122/Kor/.vs/Kor/v17/DocumentLayout.backup.json
@@ -0,0 +1,37 @@
+{
+  "Version": 1,
+  "WorkspaceRootPath": "C:\\Users\\szabomarton\\Desktop\\ProgaOra\\20250122\\Kor\\",
+  "Documents": [
+    {
+      "AbsoluteMoniker": "D:0:0:{08AC5912-8134-4A14-A3EC-C61822BA59AA}|Kor\\Kor.csproj|c:\\users\\szabomarton\\desktop\\progaora\\20250122\\kor\\kor\\program.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}",
+      "RelativeMoniker": "D:0:0:{08AC5912-8134-4A14-A3EC-C61822BA59AA}|Kor\\Kor.csproj|solutionrelative:kor\\program.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}"
+    }
+  ],
+  "DocumentGroupContainers": [
+    {
+      "Orientation": 0,
+      "VerticalTabListWidth": 256,
+      "DocumentGroups": [
+        {
+          "DockedWidth": 200,
+          "SelectedChildIndex": 0,
+          "Children": [
+            {
+              "$type": "Document",
+              "DocumentIndex": 0,
+              "Title": "Program.cs",
+              "DocumentMoniker": "C:\\Users\\szabomarton\\Desktop\\ProgaOra\\20250122\\Kor\\Kor\\Program.cs",
+              "RelativeDocumentMoniker": "Kor\\Program.cs",
+              "ToolTip": "C:\\Users\\szabomarton\\Desktop\\ProgaOra\\20250122\\Kor\\Kor\\Program.cs",
+              "RelativeToolTip": "Kor\\Program.cs",
+              "ViewState": "AgIAAGEAAAAAAAAAAAAQwG0AAAA3AAAAAAAAAA==",
+              "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000738|",
+              "WhenOpened": "2025-01-22T11:07:50.634Z",
+              "EditorCaption": ""
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/20250122/Kor/.vs/Kor/v17/DocumentLayout.json b/20250122/Kor/.vs/Kor/v17/DocumentLayout.json
new file mode 100644
index 0000000..6bbdf18
--- /dev/null
+++ b/20250122/Kor/.vs/Kor/v17/DocumentLayout.json
@@ -0,0 +1,37 @@
+{
+  "Version": 1,
+  "WorkspaceRootPath": "C:\\Users\\szabomarton\\Desktop\\ProgaOra\\20250122\\Kor\\",
+  "Documents": [
+    {
+      "AbsoluteMoniker": "D:0:0:{08AC5912-8134-4A14-A3EC-C61822BA59AA}|Kor\\Kor.csproj|c:\\users\\szabomarton\\desktop\\progaora\\20250122\\kor\\kor\\program.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}",
+      "RelativeMoniker": "D:0:0:{08AC5912-8134-4A14-A3EC-C61822BA59AA}|Kor\\Kor.csproj|solutionrelative:kor\\program.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}"
+    }
+  ],
+  "DocumentGroupContainers": [
+    {
+      "Orientation": 0,
+      "VerticalTabListWidth": 256,
+      "DocumentGroups": [
+        {
+          "DockedWidth": 200,
+          "SelectedChildIndex": 0,
+          "Children": [
+            {
+              "$type": "Document",
+              "DocumentIndex": 0,
+              "Title": "Program.cs",
+              "DocumentMoniker": "C:\\Users\\szabomarton\\Desktop\\ProgaOra\\20250122\\Kor\\Kor\\Program.cs",
+              "RelativeDocumentMoniker": "Kor\\Program.cs",
+              "ToolTip": "C:\\Users\\szabomarton\\Desktop\\ProgaOra\\20250122\\Kor\\Kor\\Program.cs",
+              "RelativeToolTip": "Kor\\Program.cs",
+              "ViewState": "AgIAAGEAAAAAAAAAAAAQwG0AAAAzAAAAAAAAAA==",
+              "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000738|",
+              "WhenOpened": "2025-01-22T11:07:50.634Z",
+              "EditorCaption": ""
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/20250122/Kor/Kor.sln b/20250122/Kor/Kor.sln
new file mode 100644
index 0000000..adc6311
--- /dev/null
+++ b/20250122/Kor/Kor.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.11.35222.181
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Kor", "Kor\Kor.csproj", "{08AC5912-8134-4A14-A3EC-C61822BA59AA}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{08AC5912-8134-4A14-A3EC-C61822BA59AA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{08AC5912-8134-4A14-A3EC-C61822BA59AA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{08AC5912-8134-4A14-A3EC-C61822BA59AA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{08AC5912-8134-4A14-A3EC-C61822BA59AA}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {2395C132-B3DA-4C13-A3F5-51E6A89E79F5}
+	EndGlobalSection
+EndGlobal
diff --git a/20250122/Kor/Kor/App.config b/20250122/Kor/Kor/App.config
new file mode 100644
index 0000000..56efbc7
--- /dev/null
+++ b/20250122/Kor/Kor/App.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>
\ No newline at end of file
diff --git a/20250122/Kor/Kor/Kor.csproj b/20250122/Kor/Kor/Kor.csproj
new file mode 100644
index 0000000..b08a9db
--- /dev/null
+++ b/20250122/Kor/Kor/Kor.csproj
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{08AC5912-8134-4A14-A3EC-C61822BA59AA}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>Kor</RootNamespace>
+    <AssemblyName>Kor</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>
\ No newline at end of file
diff --git a/20250122/Kor/Kor/Program.cs b/20250122/Kor/Kor/Program.cs
new file mode 100644
index 0000000..1df8b0a
--- /dev/null
+++ b/20250122/Kor/Kor/Program.cs
@@ -0,0 +1,121 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Kor
+{
+    public class Kor
+    {
+        public double sugar { get; set; }
+
+        public Kor(double sugar)
+        {
+            this.sugar = sugar;
+        }
+
+        public void Meretvaltoztata(double meret)
+        {
+            this.sugar = meret;
+        }
+
+        public double Kerulet()
+        {
+            return sugar * 2 * Math.PI;
+        }
+
+        public double Terulet()
+        {
+            return sugar * sugar * Math.PI;
+        }
+    } 
+
+    public class SzinesKor : Kor
+    {
+        public string szin;
+        public SzinesKor(double sugar, string szin) : base(sugar)
+        {
+            this.sugar = sugar;
+            this.szin = szin;
+        }
+    }
+
+    public class Auto
+    {
+        public string nev;
+        public double fogyasztas;
+        public double benzintank;
+        public double MAX_benzintank;
+
+
+        public Auto(string nev, double fogyasztas, double benzintank, double MAX_benzintank) {
+            this.nev = nev;
+            this.fogyasztas = fogyasztas;
+            this.benzintank = benzintank;
+            this.MAX_benzintank = MAX_benzintank;
+        }
+    }
+
+    public class Benzinkut
+    {
+        public double benzin; //jelenleg tárolt benzin mennyisége
+        public double literAr; // benzin ára literenként
+        public double kassza;
+
+        public Benzinkut(double benzin, double literAr, double kassza)
+        {
+            this.benzin = benzin;
+            this.literAr = literAr;
+            this.kassza = kassza;
+        }
+
+        public void Tankolas(Auto auto, Sofor sofor)
+        {
+            if (benzin - auto.MAX_benzintank > 0 && sofor.penz >= this.literAr * auto.MAX_benzintank)
+            {
+                auto.benzintank = auto.MAX_benzintank;
+                benzin -= auto.MAX_benzintank;
+                int fizetendo = (int)auto.MAX_benzintank * (int)this.literAr;
+                sofor.penz -= fizetendo;
+                this.kassza += fizetendo;
+            }
+        }
+    }
+
+    public class Sofor
+    {
+        public string nev;
+        public int penz;
+
+        public Sofor(string nev, int penz)
+        {
+            this.nev = nev;
+            this.penz = penz;
+        }
+    }
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            Kor kor = new Kor(1);
+            Console.WriteLine(kor.Terulet());
+            Console.WriteLine(kor.Kerulet());
+            Console.WriteLine();
+
+            SzinesKor szinesKor = new SzinesKor(2, "piros");
+            Console.WriteLine(szinesKor.Terulet());
+
+            Benzinkut benzinkut = new Benzinkut(1000, 500, 0);
+            Sofor sofor = new Sofor("Sanyi", 100000);
+            Auto auto = new Auto("Fiat", 5.3, 100, 100);
+
+            while (sofor.penz > 0) {
+                auto.benzintank = 0;
+                benzinkut.Tankolas(auto, sofor);
+                Console.WriteLine($"A sofőr aktuális egyenlege: {sofor.penz}");
+            }
+
+        }
+    }
+}
diff --git a/20250122/Kor/Kor/Properties/AssemblyInfo.cs b/20250122/Kor/Kor/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..c01528d
--- /dev/null
+++ b/20250122/Kor/Kor/Properties/AssemblyInfo.cs
@@ -0,0 +1,33 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("Kor")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Kor")]
+[assembly: AssemblyCopyright("Copyright ©  2025")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("08ac5912-8134-4a14-a3ec-c61822ba59aa")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/20250122/Kor/Kor/bin/Debug/Kor.exe b/20250122/Kor/Kor/bin/Debug/Kor.exe
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diff --git a/20250122/Kor/Kor/bin/Debug/Kor.exe.config b/20250122/Kor/Kor/bin/Debug/Kor.exe.config
new file mode 100644
index 0000000..56efbc7
--- /dev/null
+++ b/20250122/Kor/Kor/bin/Debug/Kor.exe.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>
\ No newline at end of file
diff --git a/20250122/Kor/Kor/bin/Debug/Kor.pdb b/20250122/Kor/Kor/bin/Debug/Kor.pdb
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diff --git a/20250122/Kor/Kor/obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs b/20250122/Kor/Kor/obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs
new file mode 100644
index 0000000..3871b18
--- /dev/null
+++ b/20250122/Kor/Kor/obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs
@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETFramework,Version=v4.7.2", FrameworkDisplayName = ".NET Framework 4.7.2")]
diff --git a/20250122/Kor/Kor/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache b/20250122/Kor/Kor/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache
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diff --git a/20250122/Kor/Kor/obj/Debug/Kor.csproj.AssemblyReference.cache b/20250122/Kor/Kor/obj/Debug/Kor.csproj.AssemblyReference.cache
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diff --git a/20250122/Kor/Kor/obj/Debug/Kor.csproj.CoreCompileInputs.cache b/20250122/Kor/Kor/obj/Debug/Kor.csproj.CoreCompileInputs.cache
new file mode 100644
index 0000000..0be8d26
--- /dev/null
+++ b/20250122/Kor/Kor/obj/Debug/Kor.csproj.CoreCompileInputs.cache
@@ -0,0 +1 @@
+137ddb1975586287657f37337b64d051167bb6a147915d9fb5b8eb94b1093509
diff --git a/20250122/Kor/Kor/obj/Debug/Kor.csproj.FileListAbsolute.txt b/20250122/Kor/Kor/obj/Debug/Kor.csproj.FileListAbsolute.txt
new file mode 100644
index 0000000..a9162d6
--- /dev/null
+++ b/20250122/Kor/Kor/obj/Debug/Kor.csproj.FileListAbsolute.txt
@@ -0,0 +1,7 @@
+C:\Users\szabomarton\Desktop\ProgaOra\20250122\Kor\Kor\bin\Debug\Kor.exe.config
+C:\Users\szabomarton\Desktop\ProgaOra\20250122\Kor\Kor\bin\Debug\Kor.exe
+C:\Users\szabomarton\Desktop\ProgaOra\20250122\Kor\Kor\bin\Debug\Kor.pdb
+C:\Users\szabomarton\Desktop\ProgaOra\20250122\Kor\Kor\obj\Debug\Kor.csproj.AssemblyReference.cache
+C:\Users\szabomarton\Desktop\ProgaOra\20250122\Kor\Kor\obj\Debug\Kor.csproj.CoreCompileInputs.cache
+C:\Users\szabomarton\Desktop\ProgaOra\20250122\Kor\Kor\obj\Debug\Kor.exe
+C:\Users\szabomarton\Desktop\ProgaOra\20250122\Kor\Kor\obj\Debug\Kor.pdb
diff --git a/20250122/Kor/Kor/obj/Debug/Kor.exe b/20250122/Kor/Kor/obj/Debug/Kor.exe
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index 0000000..1dea8e6
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diff --git a/20250122/Kor/Kor/obj/Debug/Kor.pdb b/20250122/Kor/Kor/obj/Debug/Kor.pdb
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