#include "mushrooms.h"
#ifndef EVAL
#include "stub.cpp"
#endif
#include <bits/stdc++.h>
using namespace std;
int count_mushrooms(int n) {
int ans = 1;
vector<int> A, B;
A.push_back(0);
for(int i=1;i<min(n,140);i++){
vector<int> tmp = {0,i};
int t = use_machine(tmp);
if(t == 0)A.push_back(t), ans++;
else B.push_back(t);
}
for(int i=min(n, 140); i < n; i++){
if(A.size() >= B.size()){
vector<int> tmp;
for(int j=0;j<(int)A.size();j++){
if(i == n)break;
tmp.push_back(A[j]);
tmp.push_back(i++);
}int t = use_machine(tmp);
if(tmp.size()%2 == 0){
if(t%2==0){
B.push_back(tmp.back());
t ^= 1;
}else ans++;
}
int sz = (tmp.size()-1)/2;
ans += (sz*2-t)/2;
}else {
vector<int> tmp;
for(int j=0;j<(int)B.size();j++){
if(i == n)break;
tmp.push_back(B[j]);
tmp.push_back(i++);
}int t = use_machine(tmp);
if(tmp.size()%2 == 0){
if(t%2==0){
A.push_back(tmp.back());
t ^= 1;
}else ans++;
}
ans += (t)/2;
}
i--;
}
return ans;
}
