Meeting

import scala.collection.mutable.ListBuffer
object Meeting {

def meeting(s: String): String = {
  var splited = s.split(';').toList
  var l:ListBuffer[String]=new ListBuffer[String]

  def splitting(NS: List[String]): List[String] = {
    if (NS.nonEmpty) {
      l.append(("("+NS.head.split(':')(1)+", "+NS.head.split(':')(0)+")").toUpperCase())
      splitting(NS.tail)
      }
    else l.sorted.toList
  }
  def print(d:List[String], str:String):String={
    if (d.nonEmpty)  print(d.tail, str+d.head)
    else str
  }
  print(splitting(splited), "")
}
}