#include <bits/stdc++.h>
#pragma GCC optimize "O3"
using namespace std;
int n;
map<int, int> mp;
int main() {
  scanf("%d", &n);
  for (int i = 0; i < n; ++i) {
    int x;
    scanf("%d", &x);
    ++mp[x];
  }
  int ans = 1;
  for (auto p : mp) ans = max(ans, p.second);
  printf("%d\n", ans);
}
