import java.util.Scanner;

public class EggGradingSystem {

    static int countA = 0, countB = 0, countC = 0, countD = 0;
    static double totalA = 0, totalB = 0, totalC = 0, totalD = 0;

    // i. Method to determine grade and calculate total weight of each grade
    public static char getGrade(double weight) {
        if (weight > 44) {
            totalA += weight;
            return 'A';
        } else if (weight >= 30) {
            totalB += weight;
            return 'B';
        } else if (weight >= 25) {
            totalC += weight;
            return 'C';
        } else {
            totalD += weight;
            return 'D';
        }
    }

    // ii. Method to count total eggs for each grade
    public static void countGrade(char grade) {
        switch (grade) {
            case 'A': countA++; break;
            case 'B': countB++; break;
            case 'C': countC++; break;
            case 'D': countD++; break;
        }
    }

    // iii. Method to display report
    public static void displayReport() {
        double totalWeight =
                totalA + totalB + totalC + totalD;

        System.out.println("\n===== EGGS GRADING REPORT =====");
        System.out.println("Grade A: " + countA + 
            " eggs, Average weight = " + 
            (countA > 0 ? totalA / countA : 0));
        System.out.println("Grade B: " + countB + 
            " eggs, Average weight = " + 
            (countB > 0 ? totalB / countB : 0));
        System.out.println("Grade C: " + countC + 
            " eggs, Average weight = " + 
            (countC > 0 ? totalC / countC : 0));
        System.out.println("Grade D (Rejected): " + countD + 
            " eggs, Average weight = " + 
            (countD > 0 ? totalD / countD : 0));

        System.out.println("Total weight of all eggs: " + totalWeight + " g");
    }

    // main method
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        double weight;
        char grade;

        for (int i = 1; i <= 10; i++) {
            System.out.print("Enter weight for egg " + i + " (g): ");
            weight = sc.nextDouble();

            grade = getGrade(weight);
            countGrade(grade);
        }

        displayReport();
        sc.close();
    }
}