Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/tests/nofib/UNUSED/nfib_overloaded/Main.hs
-- !!! the ultra-notorious "nfib 30" (overloaded arithmetic) -- module Main (main) where main = print (nfib 30) nfib 0 = 1 nfib 1 = 1 nfib n = nfib (n - 2) + nfib (n - 1) + 1