diff --git a/app/main.py b/app/main.py
index a740cca7..5e08f481 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1,3 +1,21 @@
 class OnlineCourse:
-    # write your code here
-    pass
+    def __init__(self, name: str, description: str, weeks: int) -> None:
+        self.name = name
+        self.description = description
+        self.weeks = weeks
+
+    @staticmethod
+    def days_to_weeks(days: int) -> int:
+        week = 0
+        while days >= 1:
+            week += 1
+            days = days - 7
+        return week
+
+    @classmethod
+    def from_dict(cls, cours_dict: dict) -> "OnlineCourse":
+        return cls(
+            name=cours_dict["name"],
+            description=cours_dict["description"],
+            weeks=cls.days_to_weeks(cours_dict["days"])
+        )