04. Train The Trainers

import java.util.Scanner;

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

        int juryCount = Integer.parseInt(scan.nextLine());
        double totalGrades = 0.0;
        int presentationsCount = 0;

        String input = scan.nextLine();
        while (!input.equals("Finish")) {
            double sumGrade = 0.0;
            for (int i = 1; i <= juryCount; i++) {
                double grade = Double.parseDouble(scan.nextLine());
                sumGrade += grade;
            }
            double averageGrade = sumGrade / juryCount;
            System.out.printf("%s - %.2f.%n", input, averageGrade);

            totalGrades += averageGrade;
            presentationsCount++;
            input = scan.nextLine();
        }

        double averageGrade = totalGrades / presentationsCount;
        System.out.printf("Student's final assessment is %.2f.", averageGrade);
    }
}