import structure5.*;

class BIteratorTest {
  public static void main(String[] args) {
    BIterator b = new BIterator(1234);
    // This "works" but the number is backward
    // because we print starting from the least
    // significant bit.
    // We'll find a clever solution next class.
    for (String bit : b) {
        System.out.print(bit);
    }
  }
}