Function: invert(max(min(numbers('ryy') if numbers('yxr') > numbers('epe') else numbers('rrr'), numbers('epe')) if numbers('yxr') > numbers('epe') else numbers('rrr') if numbers('ryy') > numbers('yxr') else numbers('epe'), min(numbers('rrr') if numbers('epe') > numbers('ryy') else numbers('yxr'), numbers('epe'))))
