Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Region | Date | Label | Format | Catalog |
| --- | --- | --- | --- | --- |
| united States | July 1959 | Checker Records | LP | LP-1436 |
| United Kingdom | 1959 | London Records | LP | HA-M 2230 |
| United States | August 27, 1966 | Checker Records | Stereo-Pak | 21-382A |
| United States | 1967 | Checker Records | LP | LP-3006 |
| United States | 1984 | Chess Records | LP | CH-9196 |
Question:
Which format's catalog designation was 21-382a?
Answer:
Stereo-Pak