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    \$\begingroup\$ This can be reduced \$\endgroup\$ Commented Mar 14, 2017 at 14:44
  • \$\begingroup\$ @Leo nice catch! Does this approach also work for my updated version with 95 in the string and subtracting 4621? (I don't have time to check it myself right now but will look into it some time later) \$\endgroup\$ Commented Mar 14, 2017 at 15:34
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    \$\begingroup\$ Gotcha. Took me longer than it should have, seeing how simple the result is :) \$\endgroup\$ Commented Mar 14, 2017 at 16:24