Suppose there are three processes A,B and C. All clock runs at the same rate but initially A’s clock reads 10, B’s clock reads 0 and C’s clock reads 5. At time 10 by A’s clock, A sends a message to B, this message takes 4 units of time to reach B. B then waits one unit of time and then sends a message onto C which takes 2 units of time to reach C. Assuming that the system  implements Lamport’s timestamp draw a picture illustrating the timestamps for the messages and explain how the timestamps are obtained.