#include <iostream>
#include <vector>
using namespace std;

int main(void)
{
  vector<int> sun;

  cout << "sun size = " << sun.size() << endl; // LINE A

  for(int i=0; i<10; i++) sun.push_back(i+10);

  cout << "sun size = " << sun.size() << endl; // LINE B
}