class Plane {  static String s = "-";  public static void main(String[] args) {   new Plane().s1();   System.out.println(s);  }  void s1() {  try { s2(); }  catch (Exception e) { s += "c"; }  }  void s2() throws Exception {  s3(); s += "2";  s3(); s += "2b";  }  void s3() throws Exception {  throw new Exception();  } }