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- JavaScript
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- Python
- Crystal
- C#
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- Haskell
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- Lua
- Julia (Beta)
- Go
- Fortran (Beta)
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- Erlang (Beta)
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- Clojure
- CFML (Beta)
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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.