public class Text1 {

    public static void main(String [] args){
		DoubleInt d = new DoubleInt(4,5);

		System.out.println(d.num1+" "+d.num2);

		d.num1 = 7;
		d.num2 = 2;

	System.out.println(d.num1+" "+d.num2);

	DoubleInt d2 = new DoubleInt(10,-55);
	System.out.println(d.num1+" "+d.num2);
	System.out.println(d2.num1+" "+d2.num2);
    }

public static class DoubleInt{
    	public  int num1;
    	public  int num2;

    	public DoubleInt(int a, int b){
    		num1 = a;
    		num2 = b;
    	}
    }

}