#include <iostream>
using namespace std;
class Singleton
{
 public:
	static void oneOnly (int i) {cout<<"OK!"<<"x is "<<x<<endl;
	x = i;
	};
	static void func (int j) {cout<<"function OK!"<< " y is "<<y<<endl;
	y = j;
	};

 private:
	 static int x;
	 static int y;
	 Singleton() {};
};
int Singleton::x = 5;
int Singleton::y = 10;

void main()
{ 
//	Singleton m;
//	m.oneOnly(50);
//	m.func(60);

Singleton::oneOnly(50);
Singleton::func(60);

Singleton::oneOnly(100);
Singleton::func(200);

Singleton::oneOnly(300);
Singleton::func(400);



}