Function: invert(numbers('xyy') if numbers('xyy') if numbers('xry') > numbers('yyx') else numbers('rrr') > minus(numbers('rrr') if numbers('yyx') > numbers('xry') else numbers('xyy'), numbers('xyy')) else numbers('xyy') if numbers('rrr') > numbers('yyx') else numbers('xry') if minus(numbers('yyx') if numbers('xyy') > numbers('xry') else numbers('rrr'), numbers('xyy')) > numbers('rrr') else numbers('xyy'))
