#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, s, e) for (int i = (int)s; i < (int)e; i++)

int main() {
    cin.tie(nullptr);
    
    int N;
    cin >> N;
    
    int even = 0, odd = 0;
    
    rep(i, 0, N) {
        int X;
        cin >> X;
        if (X % 2 == 0) even++;
        else odd++;
    }
    
    cout << abs(even - odd) << '\n';
}