#include <iostream>
#include <vector>
#include <cmath>

using namespace std;

int main() {
    int n, x, even, odd;
    even = 0; odd = 0;
    cin >> n;
    vector<int> numKoma;
    for (int i = 0; i < n; ++i) {
        cin >> x;
        numKoma.push_back(x);
    }
    for (auto itr = numKoma.begin(); itr != numKoma.end(); ++itr) {
        if (*itr % 2 == 0) even++;
        else odd++;
    }
    cout << abs(even - odd) << endl;
    return 0;
}