Elm I need whitespace, but got stuck on what looks like a new declaration -

i start try elm , i'm stuck on basic issue.

here code:

add : int -> int -> int add x y =   x + y  add 3 4 

i try run in browser elm reactor got issue.

detected errors in 1 module. -- syntax problem ---------------------------------------------------- hello.elm  need whitespace, got stuck on looks new declaration. either missing stuff in declaration above or need add spaces here:   looking 1 of following things:      whitespace 

i search documentation don't find error in code

edit: don't have error if remove add 3 4

to run in browser you'll need main method has type graphics.element, html.html, signal graphics.element, or signal html.html. easiest use graphics.element.show "show" string.

import graphics.element exposing (show)  add : int -> int -> int add x y =   x + y  main = show (add 3 4) 

if want try code out without making runnable elm module, can use repl

:~ % elm repl ---- elm repl 0.16.0 -----------------------------------------------------------  :help help, :exit exit, more @ <https://github.com/elm-lang/elm-repl> -------------------------------------------------------------------------------- > add x y = x + y <function> : number -> number -> number > add 3 4 7 : number >