A and B are 4 hops apart on a Circuit Switched Network where each hop is 100 mile long. Per hop processing delay is 5µs. Packets are 1500 Bytes long. All links have a Transmission speed of 56Kbps. speed of light in wire is 125,000 miles/s. If B sends a 10 packet message to A, how long will it take A to receive message up to the last bit?