case class Kid(name:String)

class FunnyGame {
    var member = List[Kid]()
    def attend(kid:Kid) = {
        member = kid :: member
    }
}

object Suneo extends Kid("Suneo") {
    val game = new FunnyGame
    def attend(kids:List[Kid]) = {
        val list = tailingNobita(kids)
        list.foreach {
            kid => kid match {
                case Suneo =>
                    game.attend(Suneo)
                    println(Suneo.name+":僕はもちろん参加ね。")
                case kid if kid != Kid("Nobita") =>
                    game.attend(kid)
                    println(Suneo.name+":大歓迎だよ"+kid.name+"！")
                case kid =>
                    println(Suneo.name+":悪いな"+kid.name+"、このゲーム"
                    +game.member.length+"人用なんだ。")
            }
        }
    }
    def tailingNobita(kids:List[Kid]):List[Kid] = kids match {
        case kid :: kids if kid == Kid("Nobita")
            => tailingNobita(kids) ++ List(kid)
        case kid :: kids
            => kid :: tailingNobita(kids)
        case Nil => Nil
    }
}

object ExceptNobita {
    def main(args:Array[String]) {
        val kidNames = List[String]() ++ args
        val kids = Suneo :: getKids(kidNames)
        Suneo.attend(kids)
    }
    def getKids(names:List[String]):List[Kid] = names match {
        case kid :: kids => Kid(kid) :: getKids(kids)
        case Nil => Nil
    }
}