anchor.diff:  Notice that the number of values in a READ statement do not have to match the number of values in DATA statements.
   You may READ in pairs and define ten values per DATA statement.
   You may READ ten items from DATA statements that contain one value each.
  +
   READing more values than are specified by DATA statements, in total, will cause an error.
  +
   BASIC keeps an internal pointer to the next data item.
   This pointer can be reset with the RESTORE statement.
   
  
positive.code: Syntax:	ARR PRINT variable list
  
  Examples:
  	100 ARR PRINT A
  	110 ARR PRINT B;
  	120 ARR PRINT A; B;
  
negative.code: Syntax:	INPUT [prompt,] variable list
  
  Examples:
  
  	60 INPUT U
  	65 INPUT V1, V2, V3
  	70 INPUT "Enter values: ", A, B
  