#include <bits/stdc++.h>
using namespace std;
int n;
int cnt[104];
int main() {
  scanf("%d", &n);
  memset(cnt, 0, sizeof(cnt));
  for (int i = 1; i <= n; i++) {
    int y;
    scanf("%d", &y);
    cnt[y]++;
  }
  int ans = 0;
  for (int i = 1; i <= 101; i++) ans = max(ans, cnt[i]);
  printf("%d\n", ans);
  return 0;
}
