#include <iostream>
using namespace std;

class Parent {
protected: 
    int _x;
public:
    Parent(int xx) : _x(xx) { cout << "P()"; }
    void setx(int x) { _x = x; }
    int getx() { return _x; }
};

class Kid : public Parent {
public:
    Kid(int xx) : Parent(xx) { cout << "K()"; }
};


int main()
{
    try
    {
        try
        {
            throw(Kid(3));
        }
        catch(Parent ob)
        {
            ob.setx(15);
            throw;
        }
        catch(Kid ob)
        {
            ob.setx(30);
            throw;
        }
    }
    catch(Kid ob)
    {
        cout << ob.getx();
    }
    return 0;
}