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- Python
- Ruby
- JavaScript
- CoffeeScript
- Java
- C#
- Haskell
- Clojure
- Rust
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- D (Beta)
- Julia (Beta)
- Scala
- C
- C++
- Elixir
- Swift
- PHP
- F#
- Kotlin
- Prolog (Beta)
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- TypeScript
- Crystal
- Lua
- Factor (Beta)
- R (Beta)
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- Shell
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- NASM
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- CommonLisp (Beta)
- VB (Beta)
- Groovy
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- SQL
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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.