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__ __ __ __ ____ ___ _________________________________________
|| || || || || || ||__ Hugs 98: Based on the Haskell 98 standard
||___|| ||__|| ||__|| __|| Copyright (c) 1994-2005
||---|| ___|| World Wide Web: http://haskell.org/hugs
|| || Report bugs to: hugs-bugs@haskell.org
|| || Version: March 2005 _________________________________________
Hugs mode: Restart with command line option +98 for Haskell 98 mode
Type :? for help
PrecExpr> Just "(((a+b)+c)+d)"
PrecExpr> Just "((a+(b*c))+d)"
PrecExpr> Just "(a+((b*c)*d))"
PrecExpr> Just "(((a+b)+(-c))+d)"
PrecExpr> Just "((a+((-b)*c))+d)"
PrecExpr> Just "(a=b)"
PrecExpr> Nothing
PrecExpr> [Leaving Hugs]
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