#include <cstdio>
#include <vector>
#include <cstdlib>

using namespace std;

int main(){
  int n;
  scanf("%d", &n);
  int odd = 0, even = 0;
  for(int i = 0; i < n; i++){
    int num;
    scanf("%d", &num);
    if(num % 2){
      odd++;
    }
    else{
      even++;
    }
  }
  printf("%d\n", abs(odd - even));
  return 0;
}