#include <bits/stdc++.h>
using namespace std;
int main() {
  int in[101]{0};
  int i, count, min, buffer;
  cin >> count;
  for (i = 0; i < count; i++) {
    cin >> buffer;
    in[buffer]++;
  }
  min = 1;
  for (i = 0; i <= 100; i++) {
    if (min < in[i]) {
      min = in[i];
    }
  }
  cout << min;
  return 0;
}
