GETINPUT - Command
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Format:
     GETINPUT [ENTRY]

Template:
     ENTRY/N

Parameter:
     Supply an entry number you want to get from the history`s input
     list.  ENTRY may either be

        * n Any valid entry ranging from 0-n, where n is the last entry
          in the list. If an illegal value is supplied, MUIProCalc will
          return the last entry from the list.

        * -1 For the active entry

        * -2 For the topmost entry

        * -3 For the bottommost entry

Result:
     Will be a string containing the expression at the specified entry.

Example:
     GETINPUT 2

     2 + 2 + 3 + 4