received 1 : client 1:
received 1 : client 2: holla
received 1 : client 3: hulli
received 1 : server: client 1 just arrived
received 1 : server: client 1 just left
received 1 : server: client 2 just arrived
received 1 : server: client 2 just left
received 1 : server: client 3 just arrived
received 1 : server: client 3 just left