#include <iostream>
using namespace std;

template <class T, int n=1>
class x {
   T save;
public:
   x();
   T value();
};

int main() {
   x<int> a ;
   cout << a.value() << endl;
   x<int,2> b ;
   cout << b.value() << endl;
   return 0;
}

template <class T, int n>
x<T,n>::x( ){ x<T,n>::save = n; }

template <class T, int n>
T x<T,n>::value(){ return x<T,n>::save; }