You are given a string as an argument. Return the camel case of the string and remove any spaces, integers, or non-letter characters.

Requirements

• Must return a string
• Should also handle more than two words

Example #1

solve("Hello! you!")
> "helloYou"

Example #2

solve("2 things 2 remember")
> "thingsRemember"

Example #2

solve("Seven Years Ago...")
> "sevenYearsAgo"