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);
}
