#include <bits/stdc++.h>
using namespace std;

int main() {
  int N;
  cin >> N;
  vector<int> A(2);

  for (int i = 0; i < N; i++) {
    int64_t X;
    cin >> X;
    A.at(abs(X % 2))++;
  }

  cout << abs(A.at(0) - A.at(1)) << endl;
}