extension String {
    func removingWhitespaces() -> String {
        return components(separatedBy: .whitespaces).joined()
    }
}

func isAnagram(_ firstWord:String, _ secondWord:String ) -> Bool{
    let charSetofFirstWord = NSCountedSet(array:Array(firstWord.removingWhitespaces()))
    let charSetofSecondWord = NSCountedSet(array:Array(secondWord.removingWhitespaces()))
    return charSetofFirstWord == charSetofSecondWord
}