Write a method that returns the sum of the digits in the specific place value of parameters 'a' and 'b' as indicated by 'place'. As preconditions you may assume that a>=0, b>=0, and that 'place' is a non-negative power of 10 (1, 10, 100, 1000, etc.). For example, if place=100 that means you are to return the sum of the digits in the 100's place of 'a' and 'b'. If place=1000 you return the sum of the digits in the 1000's place. As an additional precondition, you may assume that 'a'>='place' and that 'b'>='place'.