Solution by Ruben Westerberg

ch-1.pl and ch-1.p6
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Simply run the program to generate the Van Eck’s sequence. If no argument is provided the first 10 items are printed.

ch-2.pl and ch-2.p6
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Run the program to find the longest English word possible from US state abbreviations. Uses words_alpha.txt as valid word list. An external word list can be used by providing its path as a single argument.