diff --git a/Program.cs b/Program.cs
index 6617917..4633ba6 100644
--- a/Program.cs
+++ b/Program.cs
@@ -7,8 +7,9 @@ class Program {
         Console.Clear();
         int scelta, lineaAutobus, lineaAutobus2, fermataAutobus, conto;
         (string[], string[], bool[,]) configurazione = Configurazione();
-        string[] fermateAutobus = configurazione.Item1,  lineeAutobus= configurazione.Item2;
+        string[] fermateAutobus = configurazione.Item1, lineeAutobus = configurazione.Item2;
         bool[,] corrispondenzaLineaFermata = configurazione.Item3;
+        bool nullo = true;
 
 
         do {
@@ -63,7 +64,7 @@ class Program {
                     conto = 0;
                     lineaAutobus = SelezionaElementoArray(lineeAutobus);
                     Console.Clear();
-                    
+
                     Console.WriteLine($"La linea {lineeAutobus[lineaAutobus]} ha le fermate:");
                     for (int i = 0; i < corrispondenzaLineaFermata.GetLength(0); i++) {
                         if (corrispondenzaLineaFermata[i, lineaAutobus]) {
@@ -77,7 +78,25 @@ class Program {
                 case 4:
                     Console.Clear();
                     lineaAutobus = SelezionaElementoArray(lineeAutobus);
+                    Console.Clear();
                     lineaAutobus2 = SelezionaElementoArray(lineeAutobus);
+                    Console.Clear();
+                    if (lineaAutobus != lineaAutobus2) {
+
+                        for (int i = 0; i < corrispondenzaLineaFermata.GetLength(0); i++) {
+                            if (corrispondenzaLineaFermata[i, lineaAutobus] == corrispondenzaLineaFermata[i, lineaAutobus2]) {
+                                Console.WriteLine(fermateAutobus[i]);
+                                nullo = false;
+                            }
+                        }
+                        if (nullo) {
+                            Console.WriteLine("Nessuna");
+                        }
+                        Console.WriteLine($"Sono le fermate in comune tra le linee {lineeAutobus[lineaAutobus]} e {lineeAutobus[lineaAutobus2]}");
+                    }
+                    else {
+                        Console.WriteLine("Selezionare due linee differenti.");
+                    }
 
                     Pausa();
                     break;
@@ -170,7 +189,7 @@ class Program {
                         Console.WriteLine("Opzione non valida.");
                         Pausa();
                         break;
-                } 
+                }
             }
             r++;
             c = 0;
diff --git a/bin/Debug/net9.0/matrix_4.dll b/bin/Debug/net9.0/matrix_4.dll
index 9c47ef2..3e0df22 100644
Binary files a/bin/Debug/net9.0/matrix_4.dll and b/bin/Debug/net9.0/matrix_4.dll differ
diff --git a/bin/Debug/net9.0/matrix_4.pdb b/bin/Debug/net9.0/matrix_4.pdb
index e43b89c..72f4923 100644
Binary files a/bin/Debug/net9.0/matrix_4.pdb and b/bin/Debug/net9.0/matrix_4.pdb differ
diff --git a/obj/Debug/net9.0/matrix_4.AssemblyInfo.cs b/obj/Debug/net9.0/matrix_4.AssemblyInfo.cs
index 1a2ff92..426640a 100644
--- a/obj/Debug/net9.0/matrix_4.AssemblyInfo.cs
+++ b/obj/Debug/net9.0/matrix_4.AssemblyInfo.cs
@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("matrix_4")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+09c2790b6439f86cc13b508eb80180ea9969a5a2")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+9f8919a5b574eba0398cd547568ac709b540f80e")]
 [assembly: System.Reflection.AssemblyProductAttribute("matrix_4")]
 [assembly: System.Reflection.AssemblyTitleAttribute("matrix_4")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
diff --git a/obj/Debug/net9.0/matrix_4.AssemblyInfoInputs.cache b/obj/Debug/net9.0/matrix_4.AssemblyInfoInputs.cache
index 14160e0..3f27e31 100644
--- a/obj/Debug/net9.0/matrix_4.AssemblyInfoInputs.cache
+++ b/obj/Debug/net9.0/matrix_4.AssemblyInfoInputs.cache
@@ -1 +1 @@
-bed50ea4f11c788e1d8baa9bb78b38bfe5902dba3b657e8830dfc1654dab19d4
+80491e960ab3c3ece613e74c8824978a6fa119e6468122d8e986f574efda6e8a
diff --git a/obj/Debug/net9.0/matrix_4.dll b/obj/Debug/net9.0/matrix_4.dll
index 9c47ef2..3e0df22 100644
Binary files a/obj/Debug/net9.0/matrix_4.dll and b/obj/Debug/net9.0/matrix_4.dll differ
diff --git a/obj/Debug/net9.0/matrix_4.pdb b/obj/Debug/net9.0/matrix_4.pdb
index e43b89c..72f4923 100644
Binary files a/obj/Debug/net9.0/matrix_4.pdb and b/obj/Debug/net9.0/matrix_4.pdb differ
diff --git a/obj/Debug/net9.0/ref/matrix_4.dll b/obj/Debug/net9.0/ref/matrix_4.dll
index 24de1e5..95812c7 100644
Binary files a/obj/Debug/net9.0/ref/matrix_4.dll and b/obj/Debug/net9.0/ref/matrix_4.dll differ
diff --git a/obj/Debug/net9.0/refint/matrix_4.dll b/obj/Debug/net9.0/refint/matrix_4.dll
index 24de1e5..95812c7 100644
Binary files a/obj/Debug/net9.0/refint/matrix_4.dll and b/obj/Debug/net9.0/refint/matrix_4.dll differ