def pløf (args : String *)  {
val data = args map {io.Source.fromFile(_).getLines().toArray}
val paddedData = data map (_.padTo(data map(_.size) max, ""))
val pairs = paddedData zip (paddedData map (_.map (_.size) max))
(pairs map(x => x._1.map(_.padTo(x._2+1," ") mkString) ) transpose).map(_.mkString).foreach(println)
}