diff --git "a/leetcode3/\354\265\234\354\233\220\354\244\200/636. Exclusive Time of Functions.py" "b/leetcode3/\354\265\234\354\233\220\354\244\200/636. Exclusive Time of Functions.py"
new file mode 100644
index 00000000..23955887
--- /dev/null
+++ "b/leetcode3/\354\265\234\354\233\220\354\244\200/636. Exclusive Time of Functions.py"	
@@ -0,0 +1,25 @@
+class Solution:
+    def exclusiveTime(self, n: int, logs: List[str]) -> List[int]:
+        stack = []
+        ans = [0] * n
+
+        prev_time = 0
+
+        for log in logs:
+            id, se, time = log.split(":")
+            id = int(id)
+            time = int(time)
+
+            if se == "start":
+                if stack:
+                    ans[stack[-1]] += time - prev_time
+
+                stack.append(id)
+                prev_time = time
+
+            else:  # end
+                ans[stack[-1]] += time - prev_time + 1
+                stack.pop()
+                prev_time = time + 1
+
+        return ans