What is the abbreviation for Office the deputy chief staff the army?

Looking for the shorthand of Office the deputy chief staff the army or how to abbreviate it? We have 5 shorthands for Office the deputy chief staff the army.

ODCSDOC — Office of the Deputy Chief of Staff of the Army
ODCSPAL — Office of the Deputy Chief of Staff of the Army
ODCST — Office of the Deputy Chief of Staff of the Army
ODCSTE — Office of the Deputy Chief of Staff of the Army
ODCSTS — Office of the Deputy Chief of Staff of the Army