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When diving doubles you will need to use your wing/BCD to compensation. Typically you can't control your buoyancy only with a drysuit with steel doubles and stage bottles so you will need to use your wing to offset buoyancy.
The result is the sum of all powers of two indicated by their respective binary digits. To convert a decimal number to BCD, take the decimal result and convert each decimal place (ones, tens, hundreds) to a binary indication of that decimal digit, separated by a space from the next one.