diff --git a/Week05/emails_dilara_agac.py b/Week05/emails_dilara_agac.py
new file mode 100644
index 00000000..dd665628
--- /dev/null
+++ b/Week05/emails_dilara_agac.py
@@ -0,0 +1,23 @@
+import re
+
+
+class Emails(list):
+    def __init__(self, emails):
+        self.validate(emails)
+        super().__init__(list(dict.fromkeys(emails)))
+        self.data = self
+
+    def validate(self, emails):
+        if not all(isinstance(e, str) for e in emails):
+            raise ValueError("All items must be strings")
+
+        email_pattern = re.compile(r"^[^@]+@[^@]+\.[^@]+$")
+        for email in emails:
+            if not email_pattern.match(email):
+                raise ValueError("Invalid email address")
+
+    def __repr__(self):
+        return f"{self.__class__.__name__}({list(self)})"
+
+    def __str__(self):
+        return ", ".join(self)