public class Complex{
                private int a = 0;
                private int b = 0;

                public Complex()
                {
                        this.a = real;
                        this.b = imag;
                }

                public Complex(int real, int imag){
                        this.a = real;
                        this.b = imag;
                }
                public String toString(){
                        return "(" + this.a + ";" + this.b + ")";
                }
                public void add(Complex c){
                        this.a += c.a;
                        this.b += c.b;
                }
                public void sub(Complex c){
                        this.a -= c.a;
                        this.b -= c.b;
                }
       public static void main(String args[]){
                static Scanner sc = new Scanner(System.in);
                Complex ausgabe=new Complex();

                while(sc.hasNext()){
                        a = sc.nextInt();
                        b = sc.nextInt();
                        ausgabe.add(ausgabe1); // woimmer das auch herkommt.
                System.out.println(ausgabe);

                }

        }
}