import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Operations{
    //TODO
    public Operations(int n1,int n2)
       {
         int num1 = n1;
         int num2 = n2;
         int add = num1 + num2;
         int sub = num1 - num2;
       }
    public static int multiply()
        {
            int mul = add * sub;
            System.out.printf("The final value is %d", +mul);
        }
}

public class Source {
    public static void main(String[] args) throws IOException {
        /*Scan input numbers (using buffered reader), call constructor of Operations class and then call multiply*/
    InputStreamReader r=new InputStreamReader(System.in);
    BufferedReader br=new BufferedReader(r);
    System.out.println("Enter first num");
    int num1=br.readInt();
    System.out.println("Enter second num");
    int num2=br.readInt();
    Operations mult = new Operations(num1, num2);
    mult.multiply();
    }
}

class Operations{
    int add,sub;
    public Operations(int n1,int n2){
         int num1 = n1;
         int num2 = n2;
         add = num1 + num2;
         sub = num1 - num2;
    }
    public void multiply(){
            int mul = add * sub;
            System.out.printf("The final value is %d", +mul);
    }
}

int num1=br.readInt();

int num1 = Integer.parseInt(br.readLine());