diff --git a/Program.cs b/Program.cs
index d6790d1..c400a2b 100644
--- a/Program.cs
+++ b/Program.cs
@@ -65,7 +65,7 @@ class Program {
                     break;
                 case 5:
                     Console.Clear();
-
+                    PariEDispari();
                     Pausa();
                     break;
                 default:
@@ -107,9 +107,11 @@ class Program {
 
         //modifica della stringa per trasformarla in una sequenza di lettere ASCII
         {
-            stringa = stringa.ToLower();//convertita in minuscolo per identificare palindromi case insensitive
+            stringa = stringa.ToLower();//convertita in minuscolo per identificare palindromi senza distinzione tra maiuscole e minuscole
 
             //converto la stringa inserita da codifica Unicode a codifica ASCII
+            //******************************************************************************************************************************************************************************//
+
             Encoding ascii = Encoding.ASCII;
             Encoding unicode = Encoding.Unicode;
             char[] chars = stringa.ToCharArray();
@@ -124,19 +126,21 @@ class Program {
             for (int i = 0; i < chars.Length; i++) {
                 chars[i] = Convert.ToChar(bytes[i]);
             }
+            //******************************************************************************************************************************************************************************//
+
 
             //i numeri nei seguenti cicli for sono caratteri non lettere in codifica ASCII e separano i vari blocchi di questi caratteri che contornano i blocchi con le lettere
             //******************************************************************************************************************************************************************************//
             for (int i = 0; i <= 47; i++) {
                 stringa = stringa.Replace(Convert.ToString(Convert.ToChar(i)), "");
             }
-            for (int i = 58; i < 64; i++) {
+            for (int i = 58; i <= 64; i++) {
                 stringa = stringa.Replace(Convert.ToString(Convert.ToChar(i)), "");
             }
-            for (int i = 91; i < 96; i++) {
+            for (int i = 91; i <= 96; i++) {
                 stringa = stringa.Replace(Convert.ToString(Convert.ToChar(i)), "");
             }
-            for (int i = 123; i < 127; i++) {
+            for (int i = 123; i <= 127; i++) {
                 stringa = stringa.Replace(Convert.ToString(Convert.ToChar(i)), "");
             }
             //******************************************************************************************************************************************************************************//
@@ -177,7 +181,7 @@ class Program {
         if (daEsserCercato.Length < stringa.Length) {
             Console.WriteLine("Errore: non è possibile cercare una frase più lunga in una più corta.");
         }
-        
+
         else {
             //converto in caratteri minuscoli per semplificare la ricerca
             occorrenze = CercaStringa(daEsserCercato.ToLower(), stringa.ToLower());
@@ -230,4 +234,27 @@ class Program {
 
         return string.Join("", lettere);
     }
+
+    static void PariEDispari() {
+        string stringa;
+        int i = 0;
+        Console.Write("Inserire una frase: ");
+        stringa = Console.ReadLine();
+
+        Console.Write("Lettere pari: ");
+        while (i < stringa.Length) {
+            Console.Write(stringa[i]);
+            i = i + 2;
+        }
+        Console.WriteLine();
+
+        i = 1;
+        Console.Write("Lettere dispari: ");
+
+        while (i < stringa.Length) {
+            Console.Write(stringa[i]);
+            i = i + 2;
+        }
+        Console.WriteLine();
+    }
 }
diff --git a/bin/Debug/net9.0/strings_2.dll b/bin/Debug/net9.0/strings_2.dll
index a268329..e599d75 100644
Binary files a/bin/Debug/net9.0/strings_2.dll and b/bin/Debug/net9.0/strings_2.dll differ
diff --git a/bin/Debug/net9.0/strings_2.pdb b/bin/Debug/net9.0/strings_2.pdb
index 9a5ed6a..950585c 100644
Binary files a/bin/Debug/net9.0/strings_2.pdb and b/bin/Debug/net9.0/strings_2.pdb differ
diff --git a/obj/Debug/net9.0/ref/strings_2.dll b/obj/Debug/net9.0/ref/strings_2.dll
index 56639ce..254858f 100644
Binary files a/obj/Debug/net9.0/ref/strings_2.dll and b/obj/Debug/net9.0/ref/strings_2.dll differ
diff --git a/obj/Debug/net9.0/refint/strings_2.dll b/obj/Debug/net9.0/refint/strings_2.dll
index 56639ce..254858f 100644
Binary files a/obj/Debug/net9.0/refint/strings_2.dll and b/obj/Debug/net9.0/refint/strings_2.dll differ
diff --git a/obj/Debug/net9.0/strings_2.AssemblyInfo.cs b/obj/Debug/net9.0/strings_2.AssemblyInfo.cs
index bc70e92..85fea80 100644
--- a/obj/Debug/net9.0/strings_2.AssemblyInfo.cs
+++ b/obj/Debug/net9.0/strings_2.AssemblyInfo.cs
@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("strings_2")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+4c40b3887892e33b97b5bc6143d5052b0d5ff603")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+5a4246e15bfc1ff1e6a9e1d3113925babd28d4c8")]
 [assembly: System.Reflection.AssemblyProductAttribute("strings_2")]
 [assembly: System.Reflection.AssemblyTitleAttribute("strings_2")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
diff --git a/obj/Debug/net9.0/strings_2.AssemblyInfoInputs.cache b/obj/Debug/net9.0/strings_2.AssemblyInfoInputs.cache
index 0d68760..1a4ed22 100644
--- a/obj/Debug/net9.0/strings_2.AssemblyInfoInputs.cache
+++ b/obj/Debug/net9.0/strings_2.AssemblyInfoInputs.cache
@@ -1 +1 @@
-587bb6324f88ac6117ac0918a7ee338a0587fa64ef322f6a201f5a253d017309
+19cc6fc80d85829843c97d1f68fd5aac83154a3b5c439f42fec2bb4936b2ac88
diff --git a/obj/Debug/net9.0/strings_2.dll b/obj/Debug/net9.0/strings_2.dll
index a268329..e599d75 100644
Binary files a/obj/Debug/net9.0/strings_2.dll and b/obj/Debug/net9.0/strings_2.dll differ
diff --git a/obj/Debug/net9.0/strings_2.pdb b/obj/Debug/net9.0/strings_2.pdb
index 9a5ed6a..950585c 100644
Binary files a/obj/Debug/net9.0/strings_2.pdb and b/obj/Debug/net9.0/strings_2.pdb differ