#include <iostream>
#include <cassert>
#include <algorithm>
#include <vector>
#include <deque>
using namespace std;

int main()
{
  vector<int> vector1(20);

  for (int i = 0; i < 20; ++i)
    vector1[i] = i;

  vector<int>::iterator pos;

  for (pos=vector1.begin(); pos!=vector1.end(); ++pos) {
        cout << *pos << ' ';
  }

  return 0;
}
