How to end the CQL shell?

I am learning Cassandra right now.The problem is here

[cqlsh 5.0.1 | Cassandra 3.11.1 | CQL spec 3.4.4 | Native protocol v4]
Use HELP for help.
cqlsh> q
   ... quit
   ... HELP
   ... !
   ... EXIT
   ... 
   ... quit
   ... !
   ... EXIT
   ... 

How can I quit the shell?

try

<control-c>exit<enter>