Remember: Whenever you reserve space dynamically (at run-time) using a function such as malloc() it is also your responsibility to free the reserved space once you are done using it.
Next, let’s move the freeing of all allocated space for a number into a function. The function should again work for arbitrarily long numbers, not just for our 3-digit number. Please write a function freeNumber() to which you pass a pointer to the first digit of your number and which frees the space allocated for all of the digits of the number. The function does not need to return anything.
