Function: mod(gradient[2](max(numbers("xxy") if numbers("xxr") > numbers('xry') else numbers("per"), numbers("xxr")) if numbers("xxr") > numbers("per") else numbers("xxr") if numbers("xxy") > numbers('xry') else numbers("per")), numbers("per") if numbers("per") if numbers("xxr") > numbers("xxy") else numbers('xry') > max(numbers("xxy") if numbers("per") > numbers("xxr") else numbers('xry'), numbers("xxr")) else numbers("xxr"))
