Graduation

import java.util.Scanner;

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

        String studentName = scan.nextLine();
        double grades = 0;
        int counter = 0;

        // 0 1 2 3 4 5 6 7 8 9 10 11 -> 12
        // 1 2 3 4 5 6 7 8 9 10 11 12 -> 12

        while (counter < 12) {
            double grade = Double.parseDouble(scan.nextLine());
            if (grade >= 4.0) {
                grades += grade;
                counter++;
            }
        }

        double avgGrade = grades / 12;
        System.out.printf("%s graduated. Average grade: %.2f", studentName, avgGrade);
    }
}