#include "BaseException.hpp"
using namespace std;

class DerivedException: public BaseException {
  int b;
public:
  DerivedException(int a, int b): BaseException(a) { this->b = b; }
  char* message() {
    sprintf(s, "DerivedException, a: %d, b: %d\n", a, b);
    return s;
  }
};