import java.util.*;

public class StackTest {

    public static void main(String[] args) {

	if (args.length > 0) {

	    Stack s = new Stack();

	    Integer i4a = new Integer(4);
	    Integer i4b = new Integer(4);

	    System.out.println("i4a != i4b: " + (i4a != i4b));

	    s.push(i4a);
	    
	    for (int i = args.length-1; i >= 0; i--) 
		s.push(args[i]);

	    System.out.println("POS of " + args[0] + " = " + s.search(args[0]));
	    System.out.println("POS of Integer(3) = " + s.search(new Integer(3)));
	    System.out.println("POS of Integer(4) = " + s.search(i4b));
	}
    }
}