import java.io.*;
import java.text.*;

public class doubleIO
{
	public static void main(String args[]) throws IOException
	{
		double num1,num2; //entered by user
		double average=0; //result

		DecimalFormat template= new DecimalFormat();
		//declare an object to format our number

		BufferedReader in =new BufferedReader
                (new InputStreamReader(System.in)); //keyboard IO
                
		System.out.println("Please enter two numbers to average: ");
                System.out.print(">"); //prompt
		num1=Double.valueOf(in.readLine().trim()).doubleValue();
                System.out.print(">"); //prompt
		num2=Double.valueOf(in.readLine().trim()).doubleValue();	
		
		average=(num1+num2)/2.0;

		template.applyPattern("#.##"); //specify precision
		System.out.println("Average: "+template.format(average));
	}
}