#include<bits/stdc++.h>
using namespace std;
using Int = long long;
//INSERT ABOVE HERE
signed main(){
  Int n;
  cin>>n;
  vector<Int> x(n);
  for(Int i=0;i<n;i++) cin>>x[i];
  Int odd=0,even=0;
  for(Int i=0;i<n;i++){
    if(abs(x[i])&1) odd++;
    else even++;
  }
  cout<<n-min(odd,even)*2<<endl;
  return 0;
}