#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;
typedef long long lo;
typedef pair< lo,lo > PII;
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(lo i=1;i<=n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)
const lo MAX = -1000000000000000000;
const lo MIN = 1000000000000000000;
const lo inf = 1000000000;
const lo KOK = 100000;
const lo LOG = 30;
const lo li = 500005;
const lo mod = 1000000007;
lo a[li],cev,hak[li],hak1[li],butun,butun1,farkli,farkli1,vis[li],vis1[li];
vector<int> vv;
vector<PII> sag[li];
vector<PII> sol[li];
long long count_swaps(vector<int> v) {
//~ cout<<"**\n";
//~ int cev=0;
for(lo i=0;i<(lo)v.size();i++){
//~ cout<<"**\n";
//~ cout<<butun<<endl;
if(v[i]<0){
//~ cout<<-v[i]<<endl;
//~ cout<<sag[-v[i]][0].se<<" "<<sol[v[i]].size()<<endl;
if((lo)sag[-v[i]].size()-hak[-v[i]]>0){
hak[-v[i]]++;
for(int j=i-1;j>=0;j--){
if(v[j+1]==-v[i])break;
cev++;
swap(v[j],v[j+1]);
}
}
else{sol[-v[i]].pb(mp(i,butun1));}
}
else{
if((lo)sol[v[i]].size()-hak1[v[i]]>0){
hak1[v[i]]++;
for(int j=i;j>=0;j--){
if(v[j-1]==-v[i])break;
cev++;
swap(v[j],v[j-1]);
}
}
else{sag[v[i]].pb(mp(i,butun));}
}
}
return cev;
}
//~ int main(){
//~ lo n=0;
//~ scanf("%lld",&n);
//~ FOR{
//~ scanf("%lld",&a[i]);
//~ ////~ if(a[i]<0)
//~ vv.pb(a[i]);
//~ }
//~ ////~ cout<<vv[0]<<endl;
//~ lo at=count_swaps(vv);
//~ printf("%lld\n",at);
//~ }
