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so for this weekamp;#39;s assignment weamp;#39;re actually using something known as the loons check algorithm so loon Hanz loon from IBM developed this algorithm back in 1950 1954 to basically validate credit cards validate cards Iamp;#39;ll just shorthand that and we can prove this we can look at it and thereamp;#39;s a valid credit card look my camera zoom and focus on that donamp;#39;t worry it is empty but weamp;#39;re going to go ahead and use this card to sort of prove the lewin algorithm so Iamp;#39;m going to just write it out here for a second for a to skip ahead I got to write three five two nine eight nine two six three zero four nine four so how does the lewin check work one of the things that we have to do is we have to think about how weamp;#39;re presenting our numbers these arenamp;#39;t just kind of this is it a math Iamp;#39;m not separating things by commas itamp;#39;s not a numerical value it we think about it in at least programming as more of a string a
