diff --git a/04_data_structures.py b/04_data_structures.py
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+++ b/04_data_structures.py
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+"""
+Data Structures Examples - Robotics Edition
+This file demonstrates basic Python data structures using robotics examples.
+"""
+
+# List example: Flight path with coordinate tuples
+flight_path = [(0, 0), (5, 10), (10, 10)]
+
+print("Flight Path Waypoints:")
+for waypoint in flight_path:
+    print(f"  Waypoint: {waypoint}")
+
+print()  # Empty line for better readability
+
+# Dictionary example: Sensor readings
+sensor_readings = {
+    "gyro": 0.05,
+    "accel": 9.81,
+    "temp": 25.3
+}
+
+# Access and print the "accel" value
+print("Sensor Readings:")
+print(f"  Accelerometer: {sensor_readings['accel']} m/s²")