Write a method that accepts three single-digit non-negative integers, 'hundreds', 'tens', and 'ones'. Each of these parameters contains a single non-negative digit that represents a place-value in a base 10 number (the kind of numbers you have been using your whole life). Return a single integer value that is equal to the value represented by these place-value digits. For example, if 'hundreds' is 5, 'tens' is 2, and 'ones' is 7, that means we are trying to represent the number 527, so return that value. As preconditions, you may assume that each of the parameters only contains a single digit 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9. Note: If leading digits are zeros, those digits will not appear in the final answer. For example, if 'hundreds' is 0, 'tens' is 0, and 'ones' is 5, you will just return the value 5. If 'hundreds' is 0, 'tens' is 3, and 'ones' is 1, you will return the value 31. Look at the test data for further examples.