SimpleMapN.scala

val t1Int : Option[Int] = Some(5)
val t2Int  :Option[Int]= Some(6)


val t1String : Option[String] = Some("5")
val t2String  :Option[String]= Some("6")


case class MyTuple2[T](a : Option[T], b : Option[T]){
  def mapN(f : (T, T)=> T)  :Option[T] = {
    (a, b) match {
      case (Some(a1), Some(b1))=>Some(f(a1, b1))
      case _=> None
    }
  }
}

object MyTuple2 {
  implicit def t2x[T](t : (Option[T], Option[T]) ) = MyTuple2(t._1, t._2)
}


import MyTuple2._
(t1Int, None).mapN(_ + _)

(t1Int, t2Int).mapN(_ + _)

(t1String, t2String).mapN(_ + _)