#include<bits/stdc++.h>
#include "shoes.h"
using namespace std;
vector<int> s;
int n;
int check(vector<int> v){
n = min(v.size(), s.size());
int szaml = 0;
for(int i = 0; i < n; i++){
for(int j = i; j < n; j++){
if(s[i] == v[j]){
while(j > i && j > 0){
swap(v[j], v[j - 1]);
j--;
szaml++;
}
break;
}
}
}
return szaml;
}
vector<int> create(vector<int> a){
vector<int> r;
for(auto x : a){
r.push_back(-x);
r.push_back(x);
}
return r;
}
long long count_swaps(std::vector<int> z) {
s = z;
vector<int> a;
for(auto x : s) if(x > 0) a.push_back(x);
int mini = INT_MAX;
n = s.size();
for(int i = 0; i < 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1; i++){
mini = min(mini, check(create(a)));
next_permutation(a.begin(), a.end());
}
return mini;
}
