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import Data.Ord
main = do
        min 9 10

[1 of 1] Compiling Main             ( prog.hs, prog.o )

prog.hs:3:8:
    No instance for (Ord (IO t))
      arising from a use of `min' at prog.hs:3:8-15
    Possible fix: add an instance declaration for (Ord (IO t))
    In the expression: min 9 10
    In the expression: do min 9 10
    In the definition of `main': main = do min 9 10

prog.hs:3:12:
    No instance for (Num (IO t))
      arising from the literal `9' at prog.hs:3:12
    Possible fix: add an instance declaration for (Num (IO t))
    In the first argument of `min', namely `9'
    In the expression: min 9 10
    In the expression: do min 9 10

Standard output is empty