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  • \$\begingroup\$ Why the AvKr? Do they have a meaning / are they abbreviations for up, down, left, and right in your native language, or is there another reason why you've chose those specific characters? \$\endgroup\$ Commented Jul 5, 2017 at 6:53
  • \$\begingroup\$ @KevinCruijssen Simply because I must use alphanumeric characters and AvKr are the closest thing to arrows in alphanum. \$\endgroup\$ Commented Jul 5, 2017 at 8:05