public static ulong Remove(this ulong l, Cell oldElem) { return(l.Remove(oldElem.ToULong())); }
public static bool Contains(this ulong l, Cell cell) { return(l.Contains(cell.ToULong())); }
public static ulong Insert(this ulong l, Cell newElem) { return(l.Insert(newElem.ToULong())); }