Map applies a given function to a list. The same effect can be achieved with a list comprehensions.
NB: it returns a map object that can be converted back to a list, or used as a generator.
Output: [1, 1, 64]
Filter takes a function and a list as parameters, and returns a filter object (that can be converted into a list or used as a generator) that contains the values of the input list for which the input function returns
Output: 1 - 2 - 5 - 8 - 9