int CUBE = 4; // A 4x4x4 cube

struct StockTickData
{
    string Symbol;
    decimal Price;
    DateTime When;
    string Where;
}

class cube{
  private size;
  public set_size(value){
    if (value < 0){
      value = -value; // makes sure we have a positive size
    }
    this.size = value
  }
  public get_size(){
    return this.size;
  }
  public get_volume()
  {
    return this.size*this.size*this.size
  }
}