Professor James asked you to write a letter grade program for him. The program should ask for one score at the time, and then display the appropriate letter Grade and the message based on the Tollow . ing grading policy Task: 1) Run the program 5 times and copy the result each time to the output file. 2) Modify the program by use while repeating structure to repeat the program 5 times and get the same results as step 1 3) use these scores as your input data. (90, 72,89,56, 62) If Grade >= 90 print "A" and "excellent" if Grade Good" >=80 print "B" and "very If Grade >= 70 print "C", and "Good