#include<iostream>
#include<string>
#include<string.h>
#include<algorithm>
#include<stdio.h>
#include<cmath>
#include<vector>
#include<utility>
#include<stack>
#include<queue>
#include<list>
#include<bitset>
#include<functional>

#define FOR(i, a, b) for(int i=(a);i<=(b);i++)
#define RFOR(i, a, b) for(int i=(a);i>=(b);i--)
#define MOD 1000000007
#define INF 1000000000
#define PI 3.14159265358979

using namespace std;
typedef pair<int, int> P;

int main(void) {
	int n;
	int x[100001];
	int count;
	int gu = 0, ki = 0;

	cin >> n;
	FOR(i, 1, n) {
		cin >> x[i];
		if (x[i] % 2 == 0) {
			gu++;
		}
		else {
			ki++;
		}
	}

	count = abs(gu - ki);
	cout << count << endl;
	return 0;
}