#include <bits/stdc++.h>
using namespace std;

int main(){
	int n;
	cin >> n;
	int x;
	int even = 0,odd = 0;
	for(int i = 0; i < n; i++){
		cin >> x;
		if(x % 2 == 0) even++;
		else odd++;
	}
	cout << abs(even - odd) << endl;
	return 0;
}