#include <bits/stdc++.h>
using namespace std;
using ll = long long;
constexpr int N = 1e6+5;
int n;
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cin >> n;
map<int,set<int>> v;
for(int i = 0; i < n; i++) {
int x;
cin >> x;
v[-x].insert(i);
}
int c = 0;
for(auto &x : v) {
if(x.second.empty()) continue;
c++;
int now = -x.first;
int pos = -1;
while(v[-now].upper_bound(pos) != v[-now].end()) {
int x = *v[-now].upper_bound(pos);
pos = x;
v[-now].erase(pos);
now--;
}
}
cout << c << "\n";
return 0;
}
