Solution by Ruben Westerberg

ch-1.pl and ch-1.p6
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Run the program to with two arguments to calculate the Ackerman value of them
Displays the current recusrion count as a progress indicator and  displays the 
calculated value and total recursion count as last output.

ch-2.pl and ch-2.p6
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Run the program with a command line argument (in single quotes). The argument is a URL to validate.
With no command line argument, uses builtin test URI