A 7-node optical ring is shown below with 2 fibers between each pair of nodes. All nodes in the ring are OADMs. On this ring, we have full-duplex end-to-end flons between many of the OADMs, as indicated in the end-to-end traffic matrix below: Under normal conditions, show on the figure the total working and protection traffic flows (if any) on each link of the ring in each direction if the ring operates as a (a) OCh-DPRing, (b) OMS-SPRing. Where appropriate, assume that shortest-path is equivalent to the least number of hops. (Use a separate diagram for the OCh-DPRring and the ONS-SPRing.)