#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cstdlib>
#include<vector>
#include<map>
#include<queue>
#include<string>
#include<sstream>
#include<cmath>
using namespace std;

int main(){

  int n;
  cin >> n;
  int x;
  int o = 0, e = 0;
  for(int i=0; i<n; i++){
    cin >> x;
    if( x%2 == 0 ) e++;
    else o++;
  }
  cout << abs( o-e ) << endl;



  return 0;
}