//	Q.A. 5
//	John Wang

import java.util.Scanner;
class QA911_5
{
	public static void main(String[] args)
	{
		Scanner input = new Scanner(System.in);

		int num1 = input.nextInt();
		int num2 = input.nextInt();
		int num3 = input.nextInt();

		double avg = (num1 + num2 + num3)/3.0;

		System.out.println("AVG = " + avg + "\n\n\n");
		System.out.println("1/2 = " + 1./2 + "\n\n\n");
	}
}