diff --git a/src/CourseRegistrationStarter/Main.java b/src/CourseRegistrationStarter/Main.java
index 8f06373..2228164 100644
--- a/src/CourseRegistrationStarter/Main.java
+++ b/src/CourseRegistrationStarter/Main.java
@@ -2,13 +2,25 @@ package CourseRegistrationStarter;
 
 public class Main {
     public static void main(String[] args) {
-        // TODO:
-        // 1. Create at least 3 courses
-        // 2. Create 1 student
-        // 3. Create a registration system
-        // 4. Add courses to the system
-        // 5. Register the student in some courses
-        // 6. Drop one course
-        // 7. Print the final registered course list
+
+        Course AdvancedProgramming = new Course("AdvancedProgramming", "AP1404", 2);
+        Course DataStructures = new Course("DataStructures", "DS2201", 1);
+        Course DatabaseSystems = new Course("DatabaseSystems", "DB3301", 3);
+
+        Student fateme = new Student("fateme", "404222000");
+
+        RegistrationSystem A = new RegistrationSystem();
+
+        A.addCourseToSystem(AdvancedProgramming);
+        A.addCourseToSystem(DataStructures);
+        A.addCourseToSystem(DatabaseSystems);
+
+        fateme.addCourse(AdvancedProgramming);
+        fateme.addCourse(DataStructures);
+        fateme.addCourse(DatabaseSystems);
+
+        fateme.dropCourse(DataStructures);
+
+        fateme.showRegisteredCourses();
     }
 }