Fatal error: Class C contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (C::fun) in /in/2BPWQ on line 13
Process exited with code 255.
Fatal error: Class C contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (C::fun) in /in/2BPWQ on line 17
Process exited with code 255.