Function: square(numbers("per") if numbers('yxy') > square(numbers("xxr")) else numbers("xxr")) if numbers('yxy') if numbers("per") > square(numbers("xxr")) else numbers("xxr") > square(numbers("xxr")) if numbers("per") if numbers('yxy') > square(numbers("xxr")) else numbers("xxr") > numbers("xxr") else square(numbers("per") if numbers("xxr") > numbers('yxy') else square(numbers("xxr"))) else square(numbers("xxr"))