Where do you locate o2 sensors for a 1997 Chrysler Concorde?

On the top of the exhaust manifold is where the O2 sensors are located. There is an upstream and downstream sensor on each side of the engine. If the sensor is sensor 1 position 1, the sensor 1 means it is on the side of the first cylinder and position one means it is before the catalytic converter. If the sensor is sensor 1 position 2 it would still be on the side of the first cylinder but after the catylatic converter.