#include <bits/stdc++.h>
#define rep(i, a, n) for(int i = a; i < n; i++)
#define repp(i, n) rep(i, 0, n)
#define repb(i, a, b) for(int i = a; i >= b; i--)
#define all(a) a.begin(), a.end()
#define int long long
using namespace std;

//yuki 99

signed main(){
    int n;
    cin >> n;
    int even = 0, odd = 0;
    rep(i, 0, n){
        int a;
        cin >> a;
        if(a % 2) odd++;
        else even++;
    }

    cout << abs(odd - even) << endl;
}