| 摘要 |
An apparatus comprising: a controller; a first part; a second part; an arrangement configured to add a third part between the first part and the second part to change a configuration of the apparatus from a first configuration in which the first part and the second part are adjacent and there is no third part between the first part and the second part, to a second configuration in which the first part and the second part are separated by the third part and the first part and the third part are adjacent, wherein the controller is configured to pair the first part and the second part as a user interface when the apparatus is in the first configuration, and is configured to pair the first part and the third part as a user interface when the apparatus is in the second configuration.
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