interface SharedData{
	class Data{
		private int x=0;
		public int getx(){
			return x;}
		public void setX(int newX){
			x=newX;
			System.out.println(x);}
		}
	 Data data=new Data();
	}
public class share implements SharedData{
	public static void main(String a[]){
		share.data.setX(20);
	System.out.println(SharedData.data.getx());
		}
	}