diff --git "a/leetcode3/\354\265\234\353\257\274\354\247\200/609.py" "b/leetcode3/\354\265\234\353\257\274\354\247\200/609.py"
new file mode 100644
index 00000000..45299904
--- /dev/null
+++ "b/leetcode3/\354\265\234\353\257\274\354\247\200/609.py"
@@ -0,0 +1,20 @@
+from collections import defaultdict
+
+class Solution:
+    def findDuplicate(self, paths: List[str]) -> List[List[str]]:
+        content_map = defaultdict(list)
+
+        for path in paths:
+            parts = path.split()
+
+            directory = parts[0]
+
+            for file in parts[1:]:
+                filename, content = file.split("(")
+                content = content[:-1]         
+
+                full_path = directory + "/" + filename
+                content_map[content].append(full_path)
+
+        return [files for files in content_map.values() if len(files) > 1]
+        
\ No newline at end of file