#include <algorithm>
#include <array>
#include <cmath>
#include <cstdio>
#include <iostream>
#include <numeric>
#include <optional>
#include <vector>

using namespace std;

int main() {
    int32_t n;
    cin >> n;
    array<int32_t, 2> cnt{};
    for (auto i = 0; i < n; ++i) {
        int32_t x;
        cin >> x;
        ++cnt[abs(x % 2)];
    }
    cout << abs(cnt[0] - cnt[1]) << endl;
    return 0;
}