class WrapperClass {
  int abstract(int x) {
    if (x == 0) return 42;
    return abstract(x - 1);
  }

  int as(int x) {
    if (x == 0) return 42;
    return as(x - 1);
  }

  int covariant(int x) {
    if (x == 0) return 42;
    return covariant(x - 1);
  }

  int deferred(int x) {
    if (x == 0) return 42;
    return deferred(x - 1);
  }

  int dynamic(int x) {
    if (x == 0) return 42;
    return dynamic(x - 1);
  }

  int export(int x) {
    if (x == 0) return 42;
    return export(x - 1);
  }

  int external(int x) {
    if (x == 0) return 42;
    return external(x - 1);
  }

  int factory(int x) {
    if (x == 0) return 42;
    return factory(x - 1);
  }

  int Function(int x) {
    if (x == 0) return 42;
    return Function(x - 1);
  }

  int get(int x) {
    if (x == 0) return 42;
    return get(x - 1);
  }

  int implements(int x) {
    if (x == 0) return 42;
    return implements(x - 1);
  }

  int import(int x) {
    if (x == 0) return 42;
    return import(x - 1);
  }

  int interface(int x) {
    if (x == 0) return 42;
    return interface(x - 1);
  }

  int library(int x) {
    if (x == 0) return 42;
    return library(x - 1);
  }

  int operator(int x) {
    if (x == 0) return 42;
    return operator(x - 1);
  }

  int mixin(int x) {
    if (x == 0) return 42;
    return mixin(x - 1);
  }

  int part(int x) {
    if (x == 0) return 42;
    return part(x - 1);
  }

  int set(int x) {
    if (x == 0) return 42;
    return set(x - 1);
  }

  int static(int x) {
    if (x == 0) return 42;
    return static(x - 1);
  }

  int typedef(int x) {
    if (x == 0) return 42;
    return typedef(x - 1);
  }
}
