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  • \$\begingroup\$ nice golf, explanation? \$\endgroup\$ Commented Apr 17, 2021 at 22:21
  • 1
    \$\begingroup\$ I have 9 BTW, in case you wanted a target to beat for brownie points :P \$\endgroup\$ Commented Apr 17, 2021 at 22:22
  • \$\begingroup\$ must be some mathematical insight or something \$\endgroup\$ Commented Apr 17, 2021 at 22:24