diff --git a/Top150Interview/380InsertDeleteGetRandomO1.py b/Top150Interview/380InsertDeleteGetRandomO1.py
new file mode 100644
index 0000000..69ce5b0
--- /dev/null
+++ b/Top150Interview/380InsertDeleteGetRandomO1.py
@@ -0,0 +1,29 @@
+def __init__(self):
+    
+
+def insert(self, val):
+    """
+    :type val: int
+    :rtype: bool
+    """
+    
+
+def remove(self, val):
+    """
+    :type val: int
+    :rtype: bool
+    """
+    
+
+def getRandom(self):
+    """
+    :rtype: int
+    """
+    
+
+
+# Your RandomizedSet object will be instantiated and called as such:
+# obj = RandomizedSet()
+# param_1 = obj.insert(val)
+# param_2 = obj.remove(val)
+# param_3 = obj.getRandom()
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