Created
January 7, 2014 21:56
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| Prelude> do { | |
| Prelude| y <- return 43 | |
| Prelude| x <- return 42 | |
| Prelude| putStrLn "hello" | |
| Prelude| } | |
| <interactive>:17:3: parse error on input `<-' | |
| Prelude> |
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