Run stored procedure with output parameter in SQL Server

CREATE PROCEDURE spGetData
(
       @A    INT,
       @B    INT OUTPUT       
)
AS
BEGIN

       SET @A = 10
       SET @B = @A + 100       

END

To run this stored procedure on query prompt we need write in this way

DECLARE  @A INT
DECLARE  @B  INT

SET @A = 50
  
EXECUTE  spGetData  @A, @B OUTPUT