How to import a srfi in r6rs

i try to import the SRFI 43 in a module and i want to do it the way r6rs allow it,

i tried:

 (srfi (43))
 (rnrs lists (6))
 (rnrs base (6))
 (rnrs io simple (6)))
(display (find even? '(3 1 4 1 5 9)))

and many other variant but still get an error

Welcome to DrRacket, version 8.11 [cs].
Language: r6rs, with debugging; memory limit: 8192 MB.
. import: cannot find suitable installed library in: (srfi (43))

Interactions disabled: r6rs does not support a REPL (no #%top-interaction)

i find the solution here:

(srfi :43)