is_even_blambda

#include <iostream>
#include <algorithm>
#include <vector>

using std::cin;
using std::cout;
using std::sort;

int main() {
  int n; cin >> n;
  std::vector<int> v(n);
  for(int &el : v) cin >> el;
  cout << std::count_if(v.begin(), v.end(), [](int a) {return (a%2) == 0;});
}