#include <iostream>
#include <algorithm>
#include <vector>

void solve() {
    int n;
    std::cin >> n;

    std::vector<int> xs(n);
    for (auto& x : xs) std::cin >> x;
    std::sort(xs.begin(), xs.end());

    int odd = 0, even = 0;
    for (auto x : xs) {
        if (x % 2 == 0) {
            if (odd > 0) {
                --odd;
            } else {
                ++even;
            }
        } else {
            if (even > 0) {
                --even;
            } else {
                ++odd;
            }
        }
    }

    std::cout << odd + even << std::endl;
}

int main() {
    std::cin.tie(nullptr);
    std::ios::sync_with_stdio(false);

    solve();

    return 0;
}