#include <bits/stdc++.h>
using namespace std;
using ll = long long;
void dbg() { cout << "\n"; }
template<typename H, typename... T>
void dbg(H h, T... t) {
cout << h << " ";
dbg(t...);
}
#include "insects.h"
const int N = 2020;
int mark[N];
int min_cardinality(int n) {
vector<int> v;
int k = 0;
for (int i = 0; i < n; i++) {
move_inside(i);
if (press_button() > 1) {
move_outside(i);
} else {
mark[i] = 1;
v.push_back(i);
k++;
}
}
int ans = 1;
for (int i = 2; i <= n; i++) {
for (int j = 0; j < n; j++) {
if (mark[j]) continue;
move_inside(j);
if (press_button() > i) {
move_outside(j);
} else {
mark[j] = 1;
v.push_back(i);
}
}
// dbg(i,v.size());
if (v.size() == k*i) ans = i;
else break;
}
// int l = 1, r = n/k, ans = 0;
// while (l <= r) {
// int mid = (l+r)/2;
// int cnt = 0;
// for (auto x : v) move_outside(x);
// v.clear();
// for (int i = 0; i < n; i++) {
// move_inside(i);
// if (press_button() > mid) {
// move_outside(i);
// } else {
// v.push_back(i);
// cnt++;
// }
// }
// if (cnt == k*mid) l = mid+1, ans = mid;
// else r = mid-1;
// }
return ans;
}