Train Now

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.

Description

If you love phone numbers this is the Collection for you!

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Regular Expressions
Algorithms
Regular Expressions
Fundamentals
331,592xDranik
Arrays
Strings
Regular Expressions
Algorithms
Fundamentals
Strings