#include <bits/stdc++.h>
using namespace std;
int arr[101];
int main() {
  int N;
  scanf("%d", &N);
  memset(arr, 0, sizeof(arr));
  int mas = 0;
  for (int i = 0; i < N; i++) {
    int temp = 0;
    scanf("%d", &temp);
    arr[temp]++;
    if (mas < arr[temp]) mas = arr[temp];
  }
  printf("%d", mas);
}
