#include <iostream>
#include <stdexcept>

#define MSG_POSITIVE "Dimensions have to be positive"
#define MSG_UNEXPECTED "Unexpected error occurred"

using namespace std;

class Box {
  private:
    int width;
    int height;
    int depth;
  public:
    // constructors
    Box(int x, int y, int z){
      setWidth(x);
      setHeight(y);
      setDepth(z);
    }
    // setters
  public:
    void setWidth(int width){
      if(width > 0)
        this->width = width;
      else
        throw invalid_argument(MSG_POSITIVE);
    }
    void setHeight(int height){
      if(height > 0)
        this->height = height;
      else
        throw invalid_argument(MSG_POSITIVE);
    }
    void setDepth(int depth){
      if(depth > 0)
        this->depth = depth;
      else
        throw invalid_argument(MSG_POSITIVE);
    }

  public:
    // getters
    int getWidth(){
      return this->width;
    }
    int getHeight(){
      return this->height;
    }
    int getDepth(){
      return this->depth;
    }
    string toString(){
      string temp = "(";
      temp += to_string(getWidth());
      temp += ", " + to_string(getHeight());
      temp += ", " + to_string(getDepth());
      temp += ")";
      return temp;
    }
};

int main() {
  try {
    Box box(1, 2, 3);
    cout << box.toString() << endl;
    box.setWidth(10);
    cout << box.toString() << endl;
    box.setWidth(-10);
    cout << box.toString() << endl;

  } catch(exception &e){
    cout << e.what() << endl;
  } catch(...){
    cout << MSG_UNEXPECTED << endl;
  }

  try {
    Box box(10, -20, 30);
    cout << box.toString() << endl;
    box.setWidth(10);
    cout << box.toString() << endl;
    box.setWidth(-10);
    cout << box.toString() << endl;

  } catch(exception &e){
    cout << e.what() << endl;
  } catch(...){
    cout << MSG_UNEXPECTED << endl;
  }
  return 0;
}