We want to use multiplexing to transport 16 sources *each* with an average input rate to the multiplexor of 500 8-bit characters per second. Since only some of the sources are active at any moment, we plan to use a statistical multiplexor to combine these sources using character interleaving. Each frame carries six slots at a time, but addressing must also be added to each slot and each frame requires a single synchronization bit to start. Given this information, what size addresses are required in the output frame? What is the output data rate?