eck "OK" ergeben (probiere es in GHCi!)
check :: String
check = if beispiel == [100,50,2,1] then "OK" else "Sorry"

main :: IO ()
ma
check :: String
check = if beispiel == [100,50,2,1] then "OK" else "Sorry"
check = if beispiel == [100,50,2,1] then "OK" else "Sorry"