diff --git a/Algorithms/Exercices/FirstSet.cs b/Algorithms/Exercices/FirstSet.cs
new file mode 100644
index 0000000..f9eab6e
--- /dev/null
+++ b/Algorithms/Exercices/FirstSet.cs
@@ -0,0 +1,34 @@
+namespace Algorithms.Exercices;
+
+using System;
+
+class Solutions {
+
+    public static string RemoveTitle(string header)
+    {
+        int idx = header.IndexOf(".");
+        return header.Substring(idx + 1);
+    }
+
+    public static void MainExampleOfRemoveTitle(string[] args){
+        Console.WriteLine(RemoveTitle("4.56.2")); // "56.2"
+        Console.WriteLine(RemoveTitle("4.b.ii")); // "b.ii"
+        Console.WriteLine(RemoveTitle("")); // ""
+        Console.WriteLine(RemoveTitle("4.b")); // "b"
+    }
+
+    public static void PrintEachDirectoryOnPath(string path)
+    {
+        string[] subs = path.Split(':');
+
+        foreach (var sub in subs)
+        {
+            Console.WriteLine(sub);
+        }
+    }
+
+    public static void MainExampleOfPrintEachDirectoryOnPath(String[] args){
+        string? path = Environment.GetEnvironmentVariable("PATH");
+        PrintEachDirectoryOnPath(path ?? "");
+    }
+}
\ No newline at end of file
diff --git a/Algorithms/Point.cs b/Algorithms/Point.cs
new file mode 100644
index 0000000..7b4108e
--- /dev/null
+++ b/Algorithms/Point.cs
@@ -0,0 +1,29 @@
+namespace Algorithms;
+using System;
+class Point
+{
+    private double x;
+    private double y;
+
+    public Point(double x, double y)
+    {
+        this.x = x;
+        this.y = y;
+    }
+
+    public double X()
+    {
+        return x;
+    }
+
+    public double Y()
+    {
+        return y;
+    }
+
+    public double Distance()
+    {
+        return Math.Sqrt(X() * X() + Y() * Y());
+    }
+
+}
\ No newline at end of file
diff --git a/Algorithms/Program.cs b/Algorithms/Program.cs
index f8f3751..7e9fc6b 100644
--- a/Algorithms/Program.cs
+++ b/Algorithms/Program.cs
@@ -2,25 +2,15 @@
 namespace Algorithms;
 using System;
 
-class Point{
-    
-    private double x;
-    private double y;
-    
-    public Point(double x, double y){
-        this.x = x;
-        this.y = y;
-    }
-    
-    public double Distance(){
-        return Math.Sqrt(x * x + x * y);
-    }
-}
 
 
-class Foo{
+class EntryPoint{
+
+
     public static void Main(String[] args){
-        Point p = new Point(3, 4);
+        Point point1 = new Point(3, 4);
+        Point point2 = new Point(-3, -4);
+
         Console.WriteLine("Hello World From A Class: " + p.Distance());
     }
 }