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- C#
- Java
- Python
- JavaScript
- C++
- Haskell
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- F#
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- Elixir
- R (Beta)
- Objective-C (Beta)
- PHP
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Start training on this collection. Each time you skip or complete a kata you will be taken to the next kata in the series. Once you cycle through the items in the collection you will revert back to your normal training routine.