>>> (note: output is weird, but that's ok. the bug was that an assertion failed)
main() {
  for (int i = 0; i < 10; i++)
    for (int j = 0; j < 3; j++) {
      print('');
    }
}
<<<
main() {
  for (int i = 0; i < 10; i++)
    for (int j = 0; j < 3; j++) {
      print('');
    }
}