####ifdef
import edu.ucdavis.jr.JR;
####endif
public class fwd {
  private static op int f(int);
  private static op int g(int);
  private static int f(int x) {
    try {
      forward g(2*x);
    } catch (Exception e) {e.printStackTrace();}
####ifdef
####else
    ... // continue execution, perhaps changing x
####endif
    return 0;
  }
  private static int g(int y) {
    return y+10;
  }
  public static void main(String [] args) {
    try {
      int a = f(1); System.out.println(a);
      JR.exit(0);
    } catch (Exception e) {e.printStackTrace();}
  }
}
