import java.util.Scanner;

/* COPY MO LANG
YUNG NASA MAIN
METHOD AT YUNG
MGA NASA BABA*/

public class Prak
{

        public static void main(String[] args)
        {
            Scanner key = new Scanner(System.in);
            MidLab solve = new MidLab();

            int num, num2;


            System.out.print("Enter val 1 : ");
            num = key.nextInt();
            if(num < 0 || num > 100) {
                System.out.println("\nINVALID VALUE!!");
                System.exit(0);
            }

            System.out.print("\nEnter val 2 : ");
            num2 = key.nextInt();
            if(num2 < 0 || num2 > 100) {
                System.out.println("\nINVALID VALUE!!");
                System.exit(0);
            }

            solve.getAllVals(num, num2);


            solve.ifSumAve();

            if(solve.getSum() != 0) {
                System.out.println("\nSum : " + solve.getSum());
            }

            if(solve.getAverage() != 0) {
                System.out.println("\nAverage : " + solve.getAverage());
            }





        }

}


class MidLab {

    private int a;
    private int b;
    private int sum;
    private double average;

    public void getAllVals(int val1, int val2)  {
        a = val1;
        b = val2;
    }


    public void ifSumAve() {
        if (a > b) {
            sum = a + b;
        } else {
            average = (a + b) / 2;
        }
    }

    public int getSum() {
        return sum;
    }

    public double getAverage() {
        return average;
    }
}