evalListN +parallel

evalListN :: Int -> Strategy a -> Strategy [a]
parallel Control.Parallel.Strategies
Evaluate the first n elements of a list according to the given strategy.
evalListNth :: Int -> Strategy a -> Strategy [a]
parallel Control.Parallel.Strategies
Evaluate the nth element of a list (if there is such) according to the given strategy. The spine of the list up to the nth element is evaluated as a side effect.