2 Suppose that the following two dictionaries describe the scores of two classes for the same course. Please draw a bar chart to visualize them using Matplotlib. In this bar chart, y direction means the number of students, x direction shows grades' names. After drawing such chart, please save it to be a jpg file. class1 = {'excellent': 8, 'good': 10, 'pass': 15, 'failure': 6} class2 = {'excellent': 5, 'good': 13, 'pass': 13, 'failure': 8} (15.05) 1 Write a function as 'get_position' to return a string for indicating the position of an ordinal number, such as '1st' for 1, '2nd' for 2, '3rd' for 3, other cases like '4th' for 4. Then call the function 'get_position' by looping from 1 to 9, and print out the position for each number. (15.03)