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