#include <iostream>
using namespace std;
const int sz = 14;
int main()
{
int mass[sz];
int count = 0;
for (size_t i = 0; i < sz; i++)
{
cin >> mass[i];
if (mass[i] % 2 == 0) count++;
}
cout << count << endl;
return 0;
}
#include <iostream>
using namespace std;
const int sz = 14;
int main()
{
int mass[sz];
int element;
int tmp = -1;
cin >> element;
for (size_t i = 0; i < sz; i++)
{
cin >> mass[i];
if (mass[i] == element) tmp = i;
}
cout << tmp;
return 0;
}
