import java.util.Scanner;

public class Problem5 {
    private static Scanner scanner = new Scanner(System.in);
    public static void main(String[] args) {
        // Re-order lines 7-21 to solve the problem
        System.out.print(averageScore);
        averageScore = sumOfScores / numberOfStudents;
        currentStudent = 0;
        currentStudent = currentStudent + 1;
        currentStudentScore = scanner.nextFloat();
        float averageScore;
        float currentStudentScore;
        float sumOfScores;
        int currentStudent;
        int numberOfStudents;
        numberOfStudents = scanner.nextInt();
        sumOfScores = 0;
        sumOfScores = sumOfScores + currentStudentScore;
        while (currentStudent < numberOfStudents) {
        }
        // Re-order lines 7-21 to solve the problem
    }
}