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