#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int cnt = 0;
  for (int i = 0; i < n; i++) {
    int x;
    cin >> x;
    cnt += (x % 2);
  }
  cout << min(cnt, n - cnt) << endl;
  return 0;
}
