It is a pleasure to be helpful, I’m just reading the book, studying the concepts and putting the code at work, so the small glitches in the redaction wake up the little debugger-daemon in me… 
They actually help me to focus and understand the overall logic and goals! Also I know how hard is to spot them when you know every and each word of your book by memory. I’m glad to be of some help, while learning so much!
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