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- C++
- JavaScript
- Ruby
- Python
- C#
- PHP
- Elixir
- CoffeeScript
- Java
- C
- TypeScript
- Crystal
- NASM
- Julia (Beta)
- R (Beta)
- COBOL (Beta)
- Lua
- Haskell
- Rust
- Scala
- Dart
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- F#
- Kotlin
- Clojure
- D (Beta)
- Factor (Beta)
- Groovy
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- Fortran (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.