#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int main() {
    int n,cnt = 0;
    cin >> n;
    for (int i = 0, x; i < n && cin >> x; i++)
        cnt = x % 2 == 0 ? cnt+1 : cnt-1;
    cout << abs(cnt) << endl;
    return 0;
}