Please help using Haskell. Referring to a language like Java is not helpful because it is not a functional programming language like Haskell is.

Code should be written in Haskell. Develop a program in Haskell, following good Haskell and functional programming practices, that converts a correctly formed prefix-notation arithmetic expression +,/A into a minimally parenthesized infix expression. You may find it helpful to see the problem as having two parts.. First, convert the prefix expression into an infix expression with parentheses. Then work on eliminating superfluous parens. Note that minimizing parentheses is a challenging problem and you may wish to tackle it in stages, removing some more obvious parens before tacking the more difficult ones. To get an A grade you must at least remove some parens