ONLY DRAW THE CONTROL FLOW DIAGRAM: Write a Java program to calculate the grade of a student based on their score. The program should take an input score from the user and output the corresponding grade as follows: o $90<=$ score $<=100$: Grade A o $80<=$ score $<90$: Grade B o $70<=$ score $<80$: Grade C o $60<=$ score $<70$: Grade D o score $<60$: Grade F If the score is out of range $($less than $0$ or greater than $100),$ the program should print "Invalid score". $2.$ Draw the Control Flow Graph $($CFG$)$