DCL treats all numeric values as integers. If you do not specify
    an explicit radix, numeric values are interpreted as decimal. You
    may specify an explicit radix as follows:

       %D1000 decimal radix
       %O1357 octal radix
       %X12AF hexadecimal radix

    No blanks are allowed between the radix symbol and the number.

    For additional information on specifying integers, refer to the
    VSI OpenVMS User's Manual.