#include<iostream>
#include<stack>
using namespace std;
int main()
{
stack mystack;
mystack.push(10);
mystack.push(20);
mystack.push(30);
mystack.push(40);
mystack.push(50);
mystack.push(60);
mystack.push(70);
// Stack becomes 10,20,30,40,50,60,70
mystack.pop();
mystack.pop();
mystack.pop();
// Stack becomes 1, 2,3
while (!mystack.empty()) {
cout << ' ' << mystack.top();
mystack.pop();
}
}