#include <iostream>
#include <vector>

using namespace std;

int vectorSum(const vector<int>& v) {
  int result = 0;
  for(const int i : v) {
    result += i;
  }
  return result;
}

int main (void) {

  vector nums {2, 4, 6, 8, 10};
  cout << vectorSum(nums) << endl;

  return 0;

}