import java.util.Scanner;
import java.util.ArrayList;
import java.io.*;

class Temperatur {
	private static double avg(ArrayList<Integer> nums) {
		double sum = 0;
		for (int n: nums) {
			sum += n;
		}
		return sum / nums.size();
	}

	public static void main(String[] args) throws FileNotFoundException {
		Scanner s = new Scanner(new File("temperatur.txt"));
		ArrayList<Integer> temps = new ArrayList<Integer>();

		while (s.hasNextLine()) {
			String num = s.nextLine()+" ";
			System.out.println("'"+num+"'");
			temps.add(Integer.parseInt(num));
		}

		System.out.println("Average temperature: "+avg(temps));
	}
}