#include <iostream>
#include <map>
using namespace std;
int main()
{
    long long n, m;
    long long res=0;
    map<int, int> mapp;
    cin >> n;
    int ll;
    for (int i=0; i<n; i++){
        cin >> ll;
        mapp[ll]++;
    }
    bool b;
    int prev;
    while (true){
        b = false;
        if (mapp.size()>0){
            for (auto &mm:mapp){
                res++;
                mm.second--;
                if (mm.second==0)
                    mapp.erase(mm.first);
                b = true;
            }
        }
        res--;
        if (!b)
            break;
    }
    res++;
    cout << res;
    return 0;
}