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:We have already have had an introduction to lists. We will now explore advanced functions that use and generate lists. This is a very common practice in Python: understanding how to generate, manipulate, and apply functions to items inside a list can be incredibly useful. List comprehension is a way to build new lists from existing list and to do it faster than simply looping over lists.

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:#Using the list comprehensions above our code will be faster and more efficient than using multiple variables and loops.

= INVESTIGATION 2: STRINGS =