public class Exercise1_2 {

	 /*
	  * 2h enallaktikh  
	  */
	 
		 public static void main(String[] argv){
			  MyClass1 myObject = new MyClass1(12.0,24.0);
			  myObject.d3 = new Double(myObject.d1.doubleValue()+ myObject.d2.doubleValue());
			  System.out.println(myObject.d1 + "+" + myObject.d2 + "=" + myObject.d3);
		 }
	  
}

class MyClass1 {
	  Double d1, d2, d3;
	   MyClass1(double a, double b){
	    this.d1 = new Double(a);
	    this.d2 = new Double(b);
	  }
	}