//
//	Test List2
//
import java.util.Scanner;
public class TestList2
{
	public static void main(String[] args)
	{	Scanner input = new Scanner(System.in);
		List2 z = new List2();
		String n, dummy;
		int s;
		while(input.hasNext())
		{	n = input.nextLine();
			s = input.nextInt();
			dummy = input.nextLine();	// consume "\n"
			z.insert(n, s);
		}
		z.print();
		double avg = z.average();
		System.out.println("Average = " + avg);
	}
}