Function: sum(numbers("per") if minus(numbers("per") if numbers('xyy') > numbers("xyx") else numbers('epe'), numbers("per")) > numbers('xyy') if numbers("per") > numbers('epe') else numbers("xyx") else divide(minus(numbers("per") if numbers('epe') > numbers('xyy') else numbers("xyx"), numbers("per")), numbers('epe') if numbers("per") > numbers('xyy') else numbers("xyx")), divide(minus(numbers("per") if numbers("xyx") > numbers('xyy') else numbers('epe'), numbers("per")), numbers('epe') if numbers("per") > numbers('xyy') else numbers("xyx")))
