public class AverageLine {

	public static void main(String[] args) {
		Scanner keyboard = new Scanner(System.in);
		System.out.println("Enter string: ");
		String line = keyboard.nextLine();

		System.out.println("Average is: " + getAverage(line));
	}

	public static int getCount(String line)
	{
		int count=0;
		Scanner chopper = new Scanner(line);
		while(chopper.hasNextInt())
		{
			chopper.nextInt();
			count++;
		}
		return count;
	}

	public static int getSum(String line)
	{
		int sum=0;
		Scanner chopper = new Scanner(line);
		while(chopper.hasNextInt())
		{
			sum=sum + chopper.nextInt();
		}
		return sum;
	}

	public static double getAverage(String line)
	{
		double average;
		average = (double)getSum(line)/getCount(line);
		return average;
	}


}