Multiple Statements In Stored Procedure

I believe we can you multiple statements in stored procedures?

Suppose I have a stored procedure and I pass parameters to this SP.
What I am aiming for is to pass some values to the stored procedure, use a select statement to retrieve some values, then have two update statements as below. Updating the same table but with opposite values, both passed as a parameter and retrived, as given below:

CREATE sp_temp_proc
@order_id int,
@order_position int,
@temp_order_id OUTPUT
@temp_order_position OUTPUT,

SELECT order_id AS temp_order_id
FROM <TABLE> WHERE order_position < @order_position

@temp_order_id = temp_order_id


UPDATE <TABLE> SET order_position = @order_position WHERE order_id =
@temp_order_id

UPDATE <TABLE> SET order_position = @temp_order_position WHERE order_id = @order_id