#include <iostream>

using namespace std;

​

template <typename T1, typename T2>

class Pair {

  public:

    T1 first;

    T2 second;

​

    Pair(T1 a, T2 b) {

      first = a;

      second = b;

    }

​

    void display() {

      cout << "First: " << first << ", Second: " << second << "\n";

    }

};

​

int main() {

  Pair<string, int> person("John", 30);

  Pair<int, double> score(51, 9.5);

​

  person.display(); 

  score.display(); 

​

  return 0;

}

​