#include<iostream>

 using namespace std;

 template <int size = >

 void print()

 {

     for (int i = ; i < size; i++)

     {

         cout << "aaa" << endl;

     }

 }

 template <typename T>

 T add(T x, T y)

 {

     return x + y;

 }

 template <typename M, typename N>

 void display(M x, N y)

 {

     cout << x << endl;

     cout << y << endl;

 }

 template <typename M, int size = >

 void display(M x)

 {

     for (int i = ; i < size; i++)

     {

         cout << x << endl;

     }

 }

 int main()

 {

     int a = , b = ;

     float c = 1.2, d = 6.4;

     cout << add(a, b) << endl;

     cout << add(c, d) << endl;

     print<>();

     print();

     display(a, c);

     display<int, >(c);

     return ;

 }