#include <bits/stdc++.h>
using namespace std;

int main() {
    int N, cnt[2] = {};
    cin >> N;
    for (int i = 0; i < N; i++) {
        int x;
        cin >> x;
        cnt[((x % 2) + 2) % 2]++;
    }
    cout << abs(cnt[0] - cnt[1]) << endl;
}