AcademyGraduation

import java.text.DecimalFormat;
import java.util.*;

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

        Map<String, Double[]> students = new TreeMap<>();

        int n = Integer.parseInt(scanner.nextLine());

        for (int i = 0; i < n; i++) {
            String name = scanner.nextLine();
            String[] arr = scanner.nextLine().split("\\s+");


            Double[] scores = new Double[arr.length];

            for (int j = 0; j < arr.length; j++) {
                scores[j] = Double.parseDouble(arr[j]);
            }

            students.put(name, scores);
        }

        students.forEach((k, v) -> {
            System.out.print(k + " is graduated with ");
             double sum = 0;
            for (Double aDouble : v) {
                sum += aDouble;
            }
            double average = sum / v.length;
            DecimalFormat floatPoint;
            floatPoint = new DecimalFormat("#.###############");
            System.out.println(floatPoint.format(average));
        });
    }
}