#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<cmath>
#include<stdio.h>
#include<queue>
#include <climits>
const int mod = 1e9 + 7;
const int INF = 1e9;
using namespace std;
typedef long long ll;

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