diff --git a/Program.cs b/Program.cs
index 39b1829..73c024f 100644
--- a/Program.cs
+++ b/Program.cs
@@ -4,6 +4,60 @@ class Program
 {
     static void Main(string[] args)
     {
-        Console.WriteLine("Hello, World!");
+        Console.Clear();
+        int scelta=4, numero=0, divisore=13;
+        uint dimensione=0;
+        
+
+        do{
+            Console.WriteLine("Scegliere un'opzione:");
+            Console.WriteLine("1. Insieme di multipli di 13");
+            Console.WriteLine("2. Insieme di 0 e multipli di 13");
+            Console.WriteLine("3. Insiemi raddoppiati e triplicati");
+            Console.WriteLine("0. Esci");
+            Console.Write("Scelta: ");
+            scelta=Convert.ToInt32(Console.ReadLine());
+
+            switch(scelta){
+                case 0:
+                    break;
+                case 1:
+                    Console.Clear();
+                    Console.Write("Quanti numeri inserire? ");
+                    dimensione=Convert.ToUInt32(Console.ReadLine());
+                    int[] array1= new int[dimensione];
+                    for(int i=0; i<dimensione; i++){
+                        Console.Clear();
+                        Console.WriteLine("Inserire il numero " +(i+1)+":");
+                        numero=Convert.ToInt32(Console.ReadLine());
+                        if(numero%divisore==0){
+                            array1[i]=numero;
+                        }
+                    }
+                    Console.Clear();
+                    Console.WriteLine("I numeri inseriti sono: ");
+                    for(int i=0; i<dimensione; i++){
+                        if(array1[i]!=0){
+                            Console.WriteLine(array1[i]);
+                        }
+                    }
+                    Console.WriteLine("Premere invio per continuare");
+                    Console.ReadLine();
+                    Console.Clear();
+                    break;
+                case 2:
+
+                    break;
+                case 3:
+                    break;
+                default:
+                    Console.WriteLine("Scelta non valida.");
+                    Console.WriteLine("Premere invio per continuare");
+                    Console.ReadLine();
+                    Console.Clear();
+                    break;
+            }
+        }
+        while (scelta!=0);
     }
 }
diff --git a/bin/Debug/net9.0/array_2 b/bin/Debug/net9.0/array_2
new file mode 100755
index 0000000..23b81b3
Binary files /dev/null and b/bin/Debug/net9.0/array_2 differ
diff --git a/bin/Debug/net9.0/array_2.deps.json b/bin/Debug/net9.0/array_2.deps.json
new file mode 100644
index 0000000..fe6bed5
--- /dev/null
+++ b/bin/Debug/net9.0/array_2.deps.json
@@ -0,0 +1,23 @@
+{
+  "runtimeTarget": {
+    "name": ".NETCoreApp,Version=v9.0",
+    "signature": ""
+  },
+  "compilationOptions": {},
+  "targets": {
+    ".NETCoreApp,Version=v9.0": {
+      "array_2/1.0.0": {
+        "runtime": {
+          "array_2.dll": {}
+        }
+      }
+    }
+  },
+  "libraries": {
+    "array_2/1.0.0": {
+      "type": "project",
+      "serviceable": false,
+      "sha512": ""
+    }
+  }
+}
\ No newline at end of file
diff --git a/bin/Debug/net9.0/array_2.dll b/bin/Debug/net9.0/array_2.dll
new file mode 100644
index 0000000..2650059
Binary files /dev/null and b/bin/Debug/net9.0/array_2.dll differ
diff --git a/bin/Debug/net9.0/array_2.pdb b/bin/Debug/net9.0/array_2.pdb
new file mode 100644
index 0000000..a511946
Binary files /dev/null and b/bin/Debug/net9.0/array_2.pdb differ
diff --git a/bin/Debug/net9.0/array_2.runtimeconfig.json b/bin/Debug/net9.0/array_2.runtimeconfig.json
new file mode 100644
index 0000000..b19c3c8
--- /dev/null
+++ b/bin/Debug/net9.0/array_2.runtimeconfig.json
@@ -0,0 +1,12 @@
+{
+  "runtimeOptions": {
+    "tfm": "net9.0",
+    "framework": {
+      "name": "Microsoft.NETCore.App",
+      "version": "9.0.0"
+    },
+    "configProperties": {
+      "System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization": false
+    }
+  }
+}
\ No newline at end of file
diff --git a/obj/Debug/net9.0/.NETCoreApp,Version=v9.0.AssemblyAttributes.cs b/obj/Debug/net9.0/.NETCoreApp,Version=v9.0.AssemblyAttributes.cs
new file mode 100644
index 0000000..9e76325
--- /dev/null
+++ b/obj/Debug/net9.0/.NETCoreApp,Version=v9.0.AssemblyAttributes.cs
@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETCoreApp,Version=v9.0", FrameworkDisplayName = ".NET 9.0")]
diff --git a/obj/Debug/net9.0/apphost b/obj/Debug/net9.0/apphost
new file mode 100755
index 0000000..23b81b3
Binary files /dev/null and b/obj/Debug/net9.0/apphost differ
diff --git a/obj/Debug/net9.0/array_2.AssemblyInfo.cs b/obj/Debug/net9.0/array_2.AssemblyInfo.cs
new file mode 100644
index 0000000..f3d74c8
--- /dev/null
+++ b/obj/Debug/net9.0/array_2.AssemblyInfo.cs
@@ -0,0 +1,22 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Reflection;
+
+[assembly: System.Reflection.AssemblyCompanyAttribute("array_2")]
+[assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
+[assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+b4d7626ab25ca63582d52acfe26be3fea8143db0")]
+[assembly: System.Reflection.AssemblyProductAttribute("array_2")]
+[assembly: System.Reflection.AssemblyTitleAttribute("array_2")]
+[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
+
+// Generato dalla classe WriteCodeFragment di MSBuild.
+
diff --git a/obj/Debug/net9.0/array_2.AssemblyInfoInputs.cache b/obj/Debug/net9.0/array_2.AssemblyInfoInputs.cache
new file mode 100644
index 0000000..fb7cd5a
--- /dev/null
+++ b/obj/Debug/net9.0/array_2.AssemblyInfoInputs.cache
@@ -0,0 +1 @@
+0a8d03ec7b4708add63bec6c82ab0253c5e3f3c0bb27374307b585b8f6e35bbd
diff --git a/obj/Debug/net9.0/array_2.GeneratedMSBuildEditorConfig.editorconfig b/obj/Debug/net9.0/array_2.GeneratedMSBuildEditorConfig.editorconfig
new file mode 100644
index 0000000..d8337e7
--- /dev/null
+++ b/obj/Debug/net9.0/array_2.GeneratedMSBuildEditorConfig.editorconfig
@@ -0,0 +1,15 @@
+is_global = true
+build_property.TargetFramework = net9.0
+build_property.TargetPlatformMinVersion = 
+build_property.UsingMicrosoftNETSdkWeb = 
+build_property.ProjectTypeGuids = 
+build_property.InvariantGlobalization = 
+build_property.PlatformNeutralAssembly = 
+build_property.EnforceExtendedAnalyzerRules = 
+build_property._SupportedPlatformList = Linux,macOS,Windows
+build_property.RootNamespace = array_2
+build_property.ProjectDir = /home/BrainTheBest5/git/array_2/
+build_property.EnableComHosting = 
+build_property.EnableGeneratedComInterfaceComImportInterop = 
+build_property.EffectiveAnalysisLevelStyle = 9.0
+build_property.EnableCodeStyleSeverity = 
diff --git a/obj/Debug/net9.0/array_2.GlobalUsings.g.cs b/obj/Debug/net9.0/array_2.GlobalUsings.g.cs
new file mode 100644
index 0000000..8578f3d
--- /dev/null
+++ b/obj/Debug/net9.0/array_2.GlobalUsings.g.cs
@@ -0,0 +1,8 @@
+// <auto-generated/>
+global using global::System;
+global using global::System.Collections.Generic;
+global using global::System.IO;
+global using global::System.Linq;
+global using global::System.Net.Http;
+global using global::System.Threading;
+global using global::System.Threading.Tasks;
diff --git a/obj/Debug/net9.0/array_2.assets.cache b/obj/Debug/net9.0/array_2.assets.cache
new file mode 100644
index 0000000..57377b2
Binary files /dev/null and b/obj/Debug/net9.0/array_2.assets.cache differ
diff --git a/obj/Debug/net9.0/array_2.csproj.CoreCompileInputs.cache b/obj/Debug/net9.0/array_2.csproj.CoreCompileInputs.cache
new file mode 100644
index 0000000..beb006f
--- /dev/null
+++ b/obj/Debug/net9.0/array_2.csproj.CoreCompileInputs.cache
@@ -0,0 +1 @@
+6229bede01e1c1f39f37974fc54edbe80e9db104e2fdec3587738b0cb7a6cc57
diff --git a/obj/Debug/net9.0/array_2.csproj.FileListAbsolute.txt b/obj/Debug/net9.0/array_2.csproj.FileListAbsolute.txt
new file mode 100644
index 0000000..ed289c1
--- /dev/null
+++ b/obj/Debug/net9.0/array_2.csproj.FileListAbsolute.txt
@@ -0,0 +1,14 @@
+/home/BrainTheBest5/git/array_2/obj/Debug/net9.0/array_2.GeneratedMSBuildEditorConfig.editorconfig
+/home/BrainTheBest5/git/array_2/obj/Debug/net9.0/array_2.AssemblyInfoInputs.cache
+/home/BrainTheBest5/git/array_2/obj/Debug/net9.0/array_2.AssemblyInfo.cs
+/home/BrainTheBest5/git/array_2/obj/Debug/net9.0/array_2.csproj.CoreCompileInputs.cache
+/home/BrainTheBest5/git/array_2/bin/Debug/net9.0/array_2
+/home/BrainTheBest5/git/array_2/bin/Debug/net9.0/array_2.deps.json
+/home/BrainTheBest5/git/array_2/bin/Debug/net9.0/array_2.runtimeconfig.json
+/home/BrainTheBest5/git/array_2/bin/Debug/net9.0/array_2.dll
+/home/BrainTheBest5/git/array_2/bin/Debug/net9.0/array_2.pdb
+/home/BrainTheBest5/git/array_2/obj/Debug/net9.0/array_2.dll
+/home/BrainTheBest5/git/array_2/obj/Debug/net9.0/refint/array_2.dll
+/home/BrainTheBest5/git/array_2/obj/Debug/net9.0/array_2.pdb
+/home/BrainTheBest5/git/array_2/obj/Debug/net9.0/array_2.genruntimeconfig.cache
+/home/BrainTheBest5/git/array_2/obj/Debug/net9.0/ref/array_2.dll
diff --git a/obj/Debug/net9.0/array_2.dll b/obj/Debug/net9.0/array_2.dll
new file mode 100644
index 0000000..2650059
Binary files /dev/null and b/obj/Debug/net9.0/array_2.dll differ
diff --git a/obj/Debug/net9.0/array_2.genruntimeconfig.cache b/obj/Debug/net9.0/array_2.genruntimeconfig.cache
new file mode 100644
index 0000000..dcbfcef
--- /dev/null
+++ b/obj/Debug/net9.0/array_2.genruntimeconfig.cache
@@ -0,0 +1 @@
+0ed93086b9720787606dd29351172b5c4a2a847fe78d245e97b5c82b3d63ae90
diff --git a/obj/Debug/net9.0/array_2.pdb b/obj/Debug/net9.0/array_2.pdb
new file mode 100644
index 0000000..a511946
Binary files /dev/null and b/obj/Debug/net9.0/array_2.pdb differ
diff --git a/obj/Debug/net9.0/ref/array_2.dll b/obj/Debug/net9.0/ref/array_2.dll
new file mode 100644
index 0000000..b6c7df0
Binary files /dev/null and b/obj/Debug/net9.0/ref/array_2.dll differ
diff --git a/obj/Debug/net9.0/refint/array_2.dll b/obj/Debug/net9.0/refint/array_2.dll
new file mode 100644
index 0000000..b6c7df0
Binary files /dev/null and b/obj/Debug/net9.0/refint/array_2.dll differ