#include <bits/stdc++.h>

using namespace std;

int main() {
    int n;
    cin >> n;

    int cnt[2] = {};
    for (int i = 0; i < n; ++i) {
        int x;
        cin >> x;
        cnt[abs(x) % 2]++;
    }

    cout << abs(cnt[0] - cnt[1]) << endl;
    return 0;
}