#include<iostream>
#include<conio.h>
using namespace std;
template<class type>
class stack
{//class definition
      private:
              int *bottom,*top;
              int size;
              public:
                     int push(type);
                     int pop(type);
                     stack(int n)
                     {//structore
                               size=n;
                               bottom=new type[size];
                               top=bottom-1;
                               }
                               `stack()
                               {//destructor
                                       delete [] bottom;
                                       }
                                       }//end of class definition
                                       template<class type>
                                       int stack::push(type x)
                                       {
                                           if((top-bottom)==size-1)
                                           //stack is full
                                           return 0;
                                           top++;
                                           *top=x;
                                           return 1;
                                           }
                                           template<class type>
                                           int stack::pop(type& x)
                                           {
                                               if(top==bottom-1)
                                               //stack is empty
                                               return 0;
                                               x=*top;
                                               top--;
                                               return 1;
                                               }
int main()
{
    int a;
    stack<int> sint(20);
    stack<char> schar(20);
    int n;
    cin>>n;
    sint.push(n);
    sint.push(15);
    sint.push(10);
    sint.push(5);
    sint.push(100);
    sint.pop(a);
    return 0;
}