import java.io.*;
public class Question {
    public static void main(String[] args) throws IOException {
        String name = null;
        float mark, total, average, totalAverage = 0;
        int totalNumberOfPeople = 0;
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        System.out.println ("This program will calculate the average of five marks for each person.n");

        do {
            total = 0;
            System.out.print("Please enter student name <or enter 'end' to exit> : ");

            try {
                name = br.readLine();
            }
            catch (IOException e) {
                e.printStackTrace();
            }

            if(!name.equalsIgnoreCase("end")) {
                totalNumberOfPeople++;
                System.out.println("nPlease enter 5 marks for " + name + ".");


                for(int i=1; i <= 5; i++) {
                    System.out.print("Enter mark #" + i + " of 5: ");
                    try {
                        mark = Float.parseFloat(br.readLine());
                    }
                    catch(NumberFormatException nfe) {
                        mark = 0;
                    }
                    catch (IOException e) {
                        mark = 0;
                    }
                    total = total + mark;
                }


                average = (float)total / 5;
                System.out.println("nThe average of the 5 marks entered is " + average);
                totalAverage = totalAverage + average;
                System.out.println("============================================================");
            }
        }

        while(!name.equalsIgnoreCase("end"));

            System.out.println("============================================================");
        System.out.println("Total number of people = " + totalNumberOfPeople);
        System.out.println("The overall average for all the people entered = " + totalAverage / totalNumberOfPeople );
    }
}