var twice(f, x) {
  return f (f x);
}

_ sqr(x) {
  return x * x;
}

var main(x) {
  var f = sqr;
  return twice(f, x) * f(x);
}

var pow6(x) method_id(4) {
  return twice(sqr, x) * sqr(x);
}

{-
    method_id | in | out
TESTCASE |  0 | 3  | 729
TESTCASE |  0 | 10 | 1000000
TESTCASE |  4 | 3  | 729
TESTCASE |  4 | 10 | 1000000
-}