#include <iostream>
#include <string>
#include <vector>

using namespace std;

int main()
{ vector<string> SSS;

  while (true)
  { // invite user to type strings, store them in the array
    cout << " ? ";
    string t;
    cin >> t;

    if (t == "end")
      break;

    SSS.push_back(t); }

  for (int i = 0; i < SSS.size(); i += 1)
    cout << SSS.at(i) << "\n"; }