CONST - a non-executable statement that declares symbolic constants
        to use in place of numeric or string values
 
Syntax
  CONST constantname = expression [,constantname = expression]...
    - constantname is a name following the same naming rules as a BASIC
      variable. You may add to the name a type-declaration character
      (%, &, !, #, or $) to indicate its type (this character is not
      part of the name).
    - expression consists of literals, other constants, or any of the
      arithmetic and logical operators except exponentiation (^).