#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, maxx = 0;
  int a[101];
  int c[102];
  for (int i = 0; i < 102; i++) {
    c[i] = 0;
  }
  cin >> n;
  for (int i = 0; i < n; i++) {
    cin >> a[i];
    c[a[i]]++;
  }
  for (int i = 1; i <= 100; i++) {
    if (c[i] > maxx) {
      maxx = c[i];
    }
  }
  cout << maxx << endl;
  return 0;
}
