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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _set_default_resource_names(self):
 """ Generate names for resources based on the running_instance_id. """

        self.ip_config_name = ''.join([
            self.running_instance_id, '-ip-config'
        ])
        self.nic_name = ''.join([self.running_instance_id, '-nic'])
        self.public_ip_name = ''.join([self.running_instance_id, '-public-ip'])