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

double num1;
double num2;
double num3;

        System.out.println("What is your first number?");
        num1 = keyboard.nextDouble();
        System.out.println("What is your second number?");
        num2 = keyboard.nextDouble();
        System.out.println("What is your third number?");
        num3 = keyboard.nextDouble();

        System.out.println( num1 + " + "  +num2 + " + " + num3 + "/2" + " is..." + (num1 + num2 + num3)/2);




    }
}