How to simulate the below question in Omnet++ [closed]

  c++, omnet++

create an OMNet++ simulation project
that is based on the basic TicToc Project.

The simulation will be based on:
PC1: Endpoint
PC2: Endpoint
SR1: Server

Any message sent from PC1 to PC2 should be processed in the
server and reversed.

PC1 needs to send a message to PC2: PC1 Will send the
message “HELLO” to the server, the server will reverse it “OLLEH” and send the
message back to PC2. The same process should be considered if PC2 needs to send
back the message to PC1.

Source: Windows Questions C++