#include<iostream>
using namespace std;



class example 
{
	
	private:
		int num;
		
	public: 
		
	void SetNum(int n=4)
	
	{
		num=n;
		
	}
	
	int getNum()
	
	{
		return num*3;
	}
};

int main()

{
	example e,s;
	
	e.SetNum(33);
	cout<<e.getNum()<<endl;
	
	s.SetNum();
	cout<<s.getNum();
	
}