#include<iostream>
using namespace std;
int main(void)
{
	int i, n, ans = 0;
	long x;

	cin >> n;
	for (i = 0; i < n; i++) {
		cin >> x;
		if (x % 2 == 0)ans++;
		else ans--;
	}

	if (ans < 0)ans = -1 * ans;
	cout << ans << endl;

	return 0;
}