diff --git a/Chapter_04/4-9_cubeComprehension.py b/Chapter_04/4-9_cubeComprehension.py
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+# Exercise 4-9 Cube Comprehension 
+# Learning Objective: Use List Comprehension to create list of first 10 cubes. 
+
+cubes = [value**3 for value in range(1, 11)]
+print(cubes)
+
+# Unbenownst to me, I had done that already in 4-8. 
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