Write a program that reads in two numbers and stores them into two variables a and b respectively. These values should then be passed into a function that swaps the values stored in the two variables (hint: use a temporary local variable). The values of the two variables should then be printed out (but not in the function where they are swapped). Note: you should use separate functions for each of the major steps in this program (i.e. input, processing, output). Hint: if you wish to return two values out of a function, you can use return [a, b].