how to write command to run cron on hostinger

On hostinger I need to set up cron, for that I want to call controller function - my cron function located in public_html/admin/application/controller/cron.php, here send_birthmail() has code to execute for cron in php , so what will be my command to execute con on hostinger. only file inside public_html is getting call via cron my public_html/admin/application/controllers/cron.php should get called for send_birthmail() function action android games