import java.util.*;
import java.io.*;

public class Midterm {
   public static void main(String[] args) throws FileNotFoundException {
      Scanner console = new Scanner(System.in);
      System.out.print("Input file? ");
      String fileName = console.nextLine();
      
      Scanner input = new Scanner(new File(fileName));
      
      // read in scores (first number in file is number of scores)
      // compute average score
      int total = 0;
      int numScores = input.nextInt();
      int[] scores = new int[numScores];
      for (int times = 0; times < numScores; times++) {
         scores[times] = input.nextInt();
         total += scores[times];
      }
      double average = (double)total / numScores;
      System.out.println("Average score: " + average);
   }
}