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import scala.concurrent._
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import scala.concurrent.duration._
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import ExecutionContext.Implicits.global
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import scala.language.postfixOps
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import scala.language.reflectiveCalls
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lazy val f = Future {
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import CW8a._
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val EVIL_urban = SEQ(STAR(STAR(CHAR('a'))), CHAR('b'))
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assert(size(der('a', der('a', EVIL_urban))) == 28)
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assert(size(der('a', der('a', der('a', EVIL_urban)))) == 58)
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assert(size(ders("aaaaaa".toList, EVIL_urban)) == 8)
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}
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Await.result(f, 120 second)
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