#include<iostream>

int main() {
	int n;
	std::cin >> n;

	//[0]=odd, [1]=even;
	int odd_or_even[2] = { 0 };
	for (int i = 0; i < n; i++) {
		long long num;
		std::cin >> num;
		num = abs(num);
		odd_or_even[num % 2]++;
	}

	std::cout << abs(odd_or_even[0] - odd_or_even[1]) << std::endl;
	return 0;
}