final sclass LongRange {
  long start, end;
  
  *() {}
  *(long *start, long *end) {}
  
  public bool equals(O o) {
    if (o cast LongRange) ret start == o.start && end == o.end;
    false;
  }
  
  public int hashCode() {
    ret boostHashCombine(hashOfLong(start), hashOfLong(end));
  }
  
  long length() { ret end-start; }
  
  sS _fieldOrder = "start end";
  
  toString { ret "[" + start + ";" + end + "]"; }
}