Function: gradient[1](sum(round(numbers('yyx') if numbers("per") > numbers("xxy") else numbers('epe'), numbers('epe')), numbers('yyx') if numbers('epe') > numbers("xxy") else numbers("per")) if numbers('epe') > numbers("per") if numbers('epe') > numbers("xxy") else numbers('yyx') else round(numbers("per") if numbers("xxy") > numbers('epe') else numbers('yyx'), numbers('epe')))