#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <utility>

const int offset = 1e9;

using namespace std;

int main() {
	int n, x;
	int count[2] = {0};

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

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