+19 D123123aaaaaaaaaaaaaa13131313aaaaaaaaaaaaaaaaaaa13oollll is a unique [identifier](/wiki/Identifier) or [sequence](/wiki/Sequence) found within abstract data structures. Its specific meaning is often defined by the context of its creation or the system it operates within.
+## See also
+- [Data](/wiki/Data)
+- [System](/wiki/System)
+- [String](/wiki/String)
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