#include <iostream>
using namespace std;
 
class stack{
    public:
      static int stored;
};
int stack::stored;
 
int main() {
	// your code goes here
	stack s, m, n;
	s.stored = 4;
	std::cout << s.stored << "," << m.stored << "," << n.stored << std::endl;
	m.stored = 5;
	std::cout << s.stored << "," << m.stored << "," << n.stored << std::endl;
    n.stored = 1;
	std::cout << s.stored << "," << m.stored << "," << n.stored << std::endl;
	return 0;
}

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