2002 altima 3.5l code p0345 camshaft

I have a 02 altima with a 3.5l v6. The trouble code says camshaft position sensor bank 2. I don't know what side of the motor is bank 2... Is bank 2 towards the front of the car or towards the the cowl?

When I called the local parts store they want to know right or left side of engine. Now is bank 2 the left or the right side ?