How to get element from method returning list [on hold]

I have method

split ( numbers : List[Int], ind : Int ) : ( List[Int], List[Int] ) = {
         ....
}

I would like to in second method merge take first list returned split.

I have try

split(numbers, 2).lift(0)

or

split(numbers, 2)(0)

None of these works. Is there any way to do this? Thanks