Write a Python function listFirstDigits() that takes a list of positive integer numbers as parameter, returns a new list made of the first digits of the numbers in the list. Example: If the parameter list contains [44, 800, 7, 24], the function will return [4, 8, 7, 2]. Hint: The first digit of a number can be obtained by converting the number to string, then getting the first character, then by converting this character to integer.(PYTHON)