public class Main
{
	private static void enterA(SpyOfA spy) {
		spy.reportToA();
	}
	
	private static void enterB(SpyOfB spy) {
		spy.reportToB();
	}
	
	public static void main(String[] args) 
	{
		DoubleAgent spy = new JuniorDoubleAgent();
		enterA(spy);
		enterB(spy);
	}
}