#include <iostream>
using namespace std;
class MyClass
{
  int var;
 
   public:
  int write(int i) const {
    var = i;
  }
  int read() const {
    return var;
  }
};
int main(int argc, char const *argv[])
{
  MyClass obj;
  obj.write(2);
  cout << obj.read();
}