#define _GLIBCXX_DEBUG
#define ll long long
#include <bits/stdc++.h>
using namespace std;
using Graph = vector<vector<int>>;

int main(){
  int N; cin >> N;
  int ki = 0, gu = 0;
  for(int i = 0; i < N; i++){
    int X; cin >> X;
    if(X%2 == 0) gu++;
    else ki++;
  }
  cout << abs(ki-gu) << endl;
}