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- Python
- JavaScript
- Ruby
- Haskell
- C
- C++
- Elixir
- C#
- Java
- CoffeeScript
- Clojure
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- Swift
- Crystal
- R (Beta)
- OCaml (Beta)
- Go
- F#
- Scala
- D (Beta)
- Lua
- NASM
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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.