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#include <bits/stdc++.h>
using namespace std;
multiset <int> v;
vector<int> ord;
int main()
{
ifstream cin("heapuri.in");
ofstream cout("heapuri.out");
int n;
cin>>n;
for(int i=1;i<=n;i++)
{
int tip,x,poz;
cin>>tip;
if(tip==1)
{
cin>>x;
v.insert(x);
ord.push_back(x);
}
if(tip==2)
{
cin>>poz;
x=ord[poz-1];
v.erase(v.find(x));
}
if(tip==3)
{
multiset <int> :: iterator it = v.begin();
cout<<*it<<"\n";
}
}
return 0;
}