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- Ruby
- Python
- Java
- C#
- Clojure
- JavaScript
- Haskell
- CoffeeScript
- Elixir
- TypeScript
- C++
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- F#
- C
- R (Beta)
- Shell
- OCaml (Beta)
- Fortran (Beta)
- Julia (Beta)
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- Kotlin
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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.