main() {
  var list = [];

  Stopwatch watch = new Stopwatch();
  watch.start();
  for (var i = 0; i < 1000000; i++) list.add(i);

  var sum = 0;
  for (i in list) sum += i;

  print(sum);
  print("elapsed: ${watch.elapsedMilliseconds / 1000}");
}