import java.util.Random;
import java.util.Scanner;

public class AdditionQuiz2 {

    public static void main(String args[]) {

        Random random = new Random();
        int n1 = random.nextInt(10);
        int n2 = random.nextInt(10);

        Scanner in = new Scanner(System.in);
        System.out.print(n1 + " + " + n2 + " = ");
        int sum = in.nextInt();

        boolean correct = (n1 + n2 == sum);

        String msg = n1 + " + " + n2 + " = " + sum;
        if (correct)
            msg += " is correct";
        else
            msg += " is incorrect";
        System.out.println(msg);

        /* Another way to do this */

//        String msg = n1 + " + " + n2 + " = " + sum + " is incorrect";
//        if (correct)
//            msg = n1 + " + " + n2 + " = " + sum + " is correct";
//        System.out.println(msg);

        in.close();
    }

}