class Student extends Person {
    /*	
    *   Class Constructor
    *   
    *   @param firstName - A string denoting the Person's first name.
    *   @param lastName - A string denoting the Person's last name.
    *   @param id - An integer denoting the Person's ID number.
    *   @param scores - An array of integers denoting the Person's test scores.
    */
    // Write your constructor here
    constructor(firstName,lastName,idNumber,scores){
        super(firstName,lastName,idNumber)
        this.scores = scores;
    }

    /*	
    *   Method Name: calculate
    *   @return A character denoting the grade.
    */
    // Write your method here
    calculate(){
        const totalAverage = this.scores.reduce((acc,curr) =>acc+=curr,0) / this.scores.length;
        let A = ""
        if(totalAverage>=90 && totalAverage<=100) A = "O"
        else if(totalAverage>=80 && totalAverage<=90) A = "E"
        else if(totalAverage>=70 && totalAverage<=80) A = "A"
        else if(totalAverage>=55 && totalAverage<=70) A = "P"
        else if(totalAverage>=40 && totalAverage<=55) A = "D"
        else A = "T"
        return A
    }
}

class Student extends Person {
    private int[] testScores;

    Student(String firstName, String lastName, int identification, int[] testScores) {
        super(firstName, lastName, identification);
        this.testScores = testScores;
    }
    
    public String calculate() {
        String st = null;
        int tem = 0;
        for(int i = 0; i < testScores.length; i++) 
            tem += testScores[i];
        
       double avre = ((tem)/testScores.length);
        if(avre >= 90 && avre <= 100){
            st = "O";
        } else if(avre >= 80 && avre < 90) {
            st = "E";
        } else if(avre >= 70 && avre < 80) {
            st = "A";
        } else if(avre >= 55 && avre < 70) {
            st = "P";
        } else if(avre >= 40 && avre < 55) {
            st = "D";
        } else if(avre < 40) {
            st = "T";
        }
        
        return st;
    }
}

class Person:
	def __init__(self, firstName, lastName, idNumber):
		self.firstName = firstName
		self.lastName = lastName
		self.idNumber = idNumber
	def printPerson(self):
		print("Name:", self.lastName + ",", self.firstName)
		print("ID:", self.idNumber)
		
		
class Student(Person):
    #   Class Constructor
    #   
    #   Parameters:
    #   firstName - A string denoting the Person's first name.
    #   lastName - A string denoting the Person's last name.
    #   id - An integer denoting the Person's ID number.
    #   scores - An array of integers denoting the Person's test scores.
    #
    def __init__(self, firstName, lastName, idNumber, scores):
        self.scores = scores
        super().__init__(firstName,lastName,idNumber)

    #   Function Name: calculate
    #   Return: A character denoting the grade.
    #
    def calculate(self):
        avg = sum(self.scores) / len(self.scores)
        
        if avg >= 90 and avg <= 100:
            grade = 'O'
        elif avg >= 80 and avg <= 90:
            grade = 'E'
        elif avg >= 70 and avg <= 80:
            grade = 'A'
        elif avg >= 55 and avg <= 70:
            grade = 'P'
        elif avg >= 40 and avg <= 55:
            grade = 'D'
        else:
            grade = 'T'
        return grade

line = input().split()
firstName = line[0]
lastName = line[1]
idNum = line[2]
numScores = int(input()) # not needed for Python
scores = list( map(int, input().split()) )
s = Student(firstName, lastName, idNum, scores)
s.printPerson()
print("Grade:", s.calculate())

class Person:
	def __init__(self, firstName, lastName, idNumber):
		self.firstName = firstName
		self.lastName = lastName
		self.idNumber = idNumber
	def printPerson(self):
		print("Name:", self.lastName + ",", self.firstName)
		print("ID:", self.idNumber)
		
		
class Student(Person):
    #   Class Constructor
    #   
    #   Parameters:
    #   firstName - A string denoting the Person's first name.
    #   lastName - A string denoting the Person's last name.
    #   id - An integer denoting the Person's ID number.
    #   scores - An array of integers denoting the Person's test scores.
    #
    def __init__(self, firstName, lastName, idNumber, scores):
        self.scores = scores
        super().__init__(firstName,lastName,idNumber)

    #   Function Name: calculate
    #   Return: A character denoting the grade.
    #
    def calculate(self):
        avg = sum(self.scores) / len(self.scores)
        
        if avg >= 90 and avg <= 100:
            grade = 'O'
        elif avg >= 80 and avg <= 90:
            grade = 'E'
        elif avg >= 70 and avg <= 80:
            grade = 'A'
        elif avg >= 55 and avg <= 70:
            grade = 'P'
        elif avg >= 40 and avg <= 55:
            grade = 'D'
        else:
            grade = 'T'
        return grade

line = input().split()
firstName = line[0]
lastName = line[1]
idNum = line[2]
numScores = int(input()) # not needed for Python
scores = list( map(int, input().split()) )
s = Student(firstName, lastName, idNum, scores)
s.printPerson()
print("Grade:", s.calculate())

class Student(Person):
    #   Class Constructor
    #   
    #   Parameters:
    #   firstName - A string denoting the Person's first name.
    #   lastName - A string denoting the Person's last name.
    #   id - An integer denoting the Person's ID number.
    #   scores - An array of integers denoting the Person's test scores.
    #
    def __init__(self, firstName, lastName, idNumber, scores):
        self.scores = scores
        super().__init__(firstName,lastName,idNumber)

    #   Function Name: calculate
    #   Return: A character denoting the grade.
    #
    def calculate(self):
        avg = sum(self.scores) / len(self.scores)
        
        if avg >= 90 and avg <= 100:
            grade = 'O'
        elif avg >= 80 and avg <= 90:
            grade = 'E'
        elif avg >= 70 and avg <= 80:
            grade = 'A'
        elif avg >= 55 and avg <= 70:
            grade = 'P'
        elif avg >= 40 and avg <= 55:
            grade = 'D'
        else:
            grade = 'T'
        return grade

line = input().split()
firstName = line[0]
lastName = line[1]
idNum = line[2]
numScores = int(input()) # not needed for Python
scores = list( map(int, input().split()) )
s = Student(firstName, lastName, idNum, scores)
s.printPerson()
print("Grade:", s.calculate())