Problem 3. [20 points] Implement Banker's rounding algorithm: (1) ask the user to enter a number. (2) if the fraction is less than 0.5, round down; if the fraction is greater than 0.5, round up; if the fraction is equal to 0.5, round to the nearest even number (3) display the rounded number on the screen. Please testing the following four numbers 0.4, 0.6, 0.5, 1.5 as input and report what are the output in your write up