#include <iostream>
#include <vector>
int main() {
  std::vector<int> arr;
  int size;
  std::cout << "Insert vector size ";
  std::cin >> size;
  std::cout << size << std::endl;;
  std::cout << "Insert vector elements: ";
  for (int i = 0; i < size; ++i) {
     int in;
     std::cin >> in;
     std::cout << in << " ";
     arr.push_back(in);
  }
  std::cout << std::endl;
  // Put your code here
}