Write a Python program that uses test_string that contains a name in the form 'FirstName LastName' prints a *string of the form 'LastName, F.'. *(Only the initial should be output for the first name.)

Jenny needs to record the names of 30 students, write down the subjects they studied, and note their grades in each subject after the midsemester exams and the end-of-semester exams. she divides the midsemester and end-of-semester information into two separate worksheets, sheet 1 and sheet 2. how will she rename the two worksheets?