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- Ruby
- Python
- JavaScript
- Haskell
- Crystal
- C++
- C#
- PHP
- NASM
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- Java
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- Dart
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- Go
- Elixir
- Kotlin
- Clojure
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- COBOL (Beta)
- F#
- OCaml (Beta)
- Swift
- R (Beta)
- Nim (Beta)
- Shell
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- Scala
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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.