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#import('dart:dom');
class Example {
  void run() {
    HTMLDocument doc = window.document;
    doc.write(square(10));
  }
  List<int> square(int n) {
    var result = new List<int>();
    for(int i = 0; i < n; i++) {
      result.add(i * i);
    }
    return result;
  }
}
void main() {
  new Example().run();
}