public static void main(String[] args) {
		Scanner s = new Scanner(System.in);

		process(s);

	}

	public static void process(Scanner s) {
		// Put your code here.
		int numberofassignments = s.nextInt();
		int totalnumberofpoints = s.nextInt();
		int recitationattendance = s.nextInt();

		String[] studentarray = new String[numberofstudents]; //need to fix this part bc number of inputs changes
		for (int i = 1; i<=numberofstudents; i++)
		{
			String fName = s.next();
			String lName = s.next();
			double assignment = s.nextDouble();
			double recitation = s.nextDouble();
			double midterm1 = s.nextDouble();
			double midterm2 = s.nextDouble();
			double finalexam = s.nextDouble();
			double weightedaverage = assignment*0.4 + recitation/15*.1
					+ midterm1*0.15 + midterm2*0.15 + finalexam*0.2;
			String lettergrade;
			if (weightedaverage <0.85) lettergrade = "F";
			else if (weightedaverage <1.15) lettergrade = "D";
			else if (weightedaverage <1.5) lettergrade = "D+";
			else if (weightedaverage <1.85) lettergrade = "C-";
			else if (weightedaverage <2.15) lettergrade = "C";
			else if (weightedaverage <2.5) lettergrade = "C+";
			else if (weightedaverage <2.85) lettergrade = "B-";
			else if (weightedaverage <3.15) lettergrade = "B";
			else if (weightedaverage <3.5) lettergrade = "B+";
			else if (weightedaverage <3.85) lettergrade = "A-";
			else lettergrade = "A";
			studentarray[i-1]= ( fName.charAt(0) + ". " + lName + " " + lettergrade);


		};
		for (int i = 0; i < numberofstudents; i++)

		System.out.println(studentarray[i]);

	}

}