Submission #2230528

---

Source Code Expand

main = do
    n <- readLn :: IO Int
    putStrln $ show (2 * n)

Submission Info

Compile Error

Main.hs:3:5:
    Not in scope: ‘putStrln’
    Perhaps you meant one of these:
      ‘putStrLn’ (imported from Prelude),
      ‘putStr’ (imported from Prelude)