import scala.io.Source

object LongLines {
  def processFile(filename: String, width: Int) {
  val source = Source.fromFile(filename)
  for (line <source.getLines)
    processLine(filename, width, line)
}

private def processLine(filename: String,
  width: Int, line: String) {
  if (line.length > width)
    println(filename +": "+ line.trim)
  }
}

object FindLongLines {
  def main(args: Array[String]) {
  val width = args(0).toInt
  for (arg <args.drop(1))
  LongLines.processFile(arg, width)
  }
}