#include <iostream>
using namespace std;

int main(void)
{
	int N;
	int tmp;
	int count = 0;

	scanf("%d", &N);

	for(int i = 0; i < N; i++)
	{
		scanf("%d", &tmp);

		if(tmp % 2 == 0)
			count++;
	}

	if(N - 2 * count > 0)
		printf("%d\n", N - 2 * count);
	else
		printf("%d\n", 2 * count - N);
}