#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, b, cnt[105] = {0};
  cin >> n;
  vector<int> a;
  for (int i = 0; i < n; i++) {
    cin >> b;
    a.push_back(b);
    cnt[a[i]] = cnt[a[i]] + 1;
  }
  int y = 0;
  int x;
  x = *max_element(a.begin(), a.end());
  for (int i = 0; i <= x; i++) {
    if (cnt[i] >= y) {
      y = cnt[i];
    }
  }
  cout << y << endl;
  return 0;
}
