     1	open
     2	1000
     3	open
     4	2000
     5	help
     6	report
     7	open
     8	3000
     9	customer
    10	0
    11	balance
    12	deposit
    13	9999
    14	balance
    15	quit
    16	customer
    17	1
    18	transfer
    19	9
    20	transfer
    21	2
    22	45
    23	quit
    24	exit
