(To open Table #02)
(To register the ordered item and price.)
(To close Table #02 once.)
(To display table #'s and amounts whose accounts
are outstanding.)
(To select Table #02.)
(To open Table #02.)
(To register the ordered item and price.)
(To close Table #02 once.)
(To open Table #01.)
(To add up the balance of Table #01 to that of Table
#02.)