| 摘要 |
A first device includes a determining unit for determining a first number allocated to the first device and a second number allocated to a second device, a first storage for storing a first possible amount that the user can output with the first device, a first output unit for outputting an object of the first number, when the first number is less than the first possible amount, and a first update unit for updating the first possible amount according to an output number output by the first device. The second device includes a second output unit for outputting an object of the second number, when the second number is less than a second possible amount, and a second update unit for updating the second possible amount according to an output number output by the second device, only when authentication of the user is successful. |
