String formatting in Haskell

Question

What is Haskell's equivalent of ``` string str = string.Format("{0} {1}",10,20); // C# ```

Accepted Answer

There is a Printf module in GHC.

```
import Text.Printf
str :: String
str = printf "%d %d" 10 20
```

however it is probably simpler to just do

```
str = show 10 ++ " " ++ show 20
```

Solution