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- Python
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- C
- NASM
- Haskell
- Ruby
- Java
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- Reason (Beta)
- PHP
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- C++
- Elixir
- Julia (Beta)
- Racket
- Factor (Beta)
- Kotlin
- COBOL (Beta)
- Rust
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- Dart
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- R (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.