#include <bits/stdc++.h>
using namespace std;
unordered_map<int,int> mp;
int a[110];
int main()
{
int n;
cin >> n;
for(int i = 0;i < n;i ++)
{
cin >> a[i];
mp[a[i]] ++;
}
int max1 = -10000;
for(auto tt : mp)
{
max1 = max(tt.second,max1);
}
cout << max1 << endl;
return 0;
}