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- JavaScript
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- Python
- Java
- C++
- Ruby
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- NASM
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- Julia (Beta)
- Go
- Fortran (Beta)
- Factor (Beta)
- Erlang (Beta)
- Elixir
- Dart
- Crystal
- CoffeeScript
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- C
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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.