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- Python
- JavaScript
- Ruby
- Haskell
- COBOL (Beta)
- Java
- C++
- PHP
- C#
- R (Beta)
- Swift
- Objective-C (Beta)
- F#
- C
- NASM
- Factor (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.