| 摘要 |
In one general aspect, a computer-readable storage medium can be configured to store instructions that when executed cause a processor to perform a process. The instructions can include instructions to receive, at a first device, a target attribute associated with a first user account and to access a code representing the target attribute and including a plurality of values. The instructions can include instructions to send, to the second device, a portion of the code and an indicator of a relative location within the code of the portion of the code, and to receive an indicator from the second device that the portion of the code is included at the relative location within at least one code from a plurality of codes associated with a plurality of attributes associated with a second user account.
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