Section 8,4,4: Hollerith

 A Hollerith constant is a string of printable characters preceded
 by a character count and the letter H.  It is used only in numeric
 expressions and has the form:

   nHc1c2c3...cn

   n     Is an unsigned, nonzero integer constant stating the
         number of characters in the string (including tabs 
         and spaces)
   c     Is a printable character

 A Hollerith constant can be a string of 1 to 2000 characters and is
 stored as a byte string, one character per byte.

 Hollerith constants have no data type, but assume a numeric data
 type according to the context in which they are used.