#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int a[n];
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }
  sort(a, a + n);
  int temp = a[0];
  int count = 1, max = 1;
  for (int i = 1; i < n; i++) {
    if (a[i] == temp) {
      count++;
      if (count >= max) {
        max = count;
      }
    } else {
      count = 1;
      temp = a[i];
    }
  }
  cout << n - max << endl;
}
