I see the question as fair one to ensure that you understand what is required of you during an autorotation.
If you mentally or by drawing a picture of a helicopter from behind and above so that the rotor blade is passing over the tail boom. This rotor blade will be rotating from left to right(anti-clockwise), so the tail boom will be moved from left to RIGHT due to , lets summerise it as 'Friction'. Therefore the T/R Thrust required to offset the 'Friction' will have to be to the LEFT