#include <stack>
#include <iostream>
 
using namespace std;
 
void juegoEnsayo(stack<int>& unaPila)
{
    unaPila.push(6);
    unaPila.push(9);
    unaPila.push(8);
}
 
template<typename T> void printElm(stack<T> mystack)
{
    while (!mystack.empty())
    {
        cout << mystack.top() << " | ";
        mystack.pop();
    }
}
 
int main()
{
    stack<int> pila1;
    printElm(pila1);
    cout<<endl;
    juegoEnsayo(pila1);
    printElm(pila1);
    return 0;
}
 
 

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