#include <iostream>
#include <vector>

using namespace std;

int sumar(vector<int> coleccion) {

  int suma = 0;

  for (int i = 0; i < coleccion.size(); i++)
    suma += coleccion[i];

  return suma;
  
}

int main() {

  vector<int> v = {12, 8, 5, 15, 3};
  
  cout << sumar(v) << endl;

}