diff --git "a/leetcode3/\354\265\234\353\257\274\354\247\200/636.py" "b/leetcode3/\354\265\234\353\257\274\354\247\200/636.py"
new file mode 100644
index 00000000..52995464
--- /dev/null
+++ "b/leetcode3/\354\265\234\353\257\274\354\247\200/636.py"
@@ -0,0 +1,23 @@
+class Solution:
+    def exclusiveTime(self, n: int, logs: List[str]) -> List[int]:
+        res = [0] * n
+        stack = []
+        prev_time = 0
+        
+        for log in logs:
+            fn_id, event, timestamp = log.split(":")
+            fn_id = int(fn_id)
+            curr_time = int(timestamp)
+            
+            if event == "start":
+                if stack:
+                    res[stack[-1]] += curr_time - prev_time
+                
+                stack.append(fn_id)
+                prev_time = curr_time
+            else:  
+                res[stack.pop()] += curr_time - prev_time + 1
+                prev_time = curr_time + 1
+                
+        return res
+        
\ No newline at end of file