reverse-complement.hs:8:1: lexical error at character 'f'
<<ghc: 10465092 bytes, 4 GCs, 110028/110028 avg/max bytes residency (1 samples), 7M in use, 0.00 INIT (0.00 elapsed), 0.01 MUT (0.02 elapsed), 0.00 GC (0.01 elapsed) :ghc>>