0    2          IDENT
   2    7          primary-expr -> IDENT
   7   27          ASSIGN
  27   29          assign-op -> ASSIGN
  29   66          NUMBER
  66   74          primary-expr -> NUMBER
  74   41          LSHIFT
  41  151          shift-op -> LSHIFT
 151  112          NUMBER
 112  205          primary-expr -> NUMBER
 205   44          PLUS
  44  182          add-op -> PLUS
 182  118          NUMBER
 118  231          primary-expr -> NUMBER
 231   47          TIMES
  47  186          mul-op -> TIMES
 186   50          NUMBER
  50  234          primary-expr -> NUMBER
 234  231          mul-expr -> mul-expr mul-op unary-expr
 231  205          add-expr -> add-expr add-op mul-expr
 205   69          shift-expr -> shift-expr shift-op add-expr
  69    6          assign-expr -> or-expr assign-op assign-expr
   6               start -> expr