How do you write a program that prompts a professor to imput grades for five different courses for ten students. Prompt the professor to enter one grade at time using the prompt "Enter grades for student #1" and "Enter grade #1". Verify that the professor enters only A, B, C, D, or F. Use variables for the student numbers (1 through 10) and grade numbers (1 through 5). The class name is GradePoint.