#include<bits/stdc++.h>
using namespace std;
int main()
{
	priority_queue<int> q;
	int n;
	cin>>n;
	while(n--)
	{
		int op;
		cin>>op;
		if(op==1)
		{
			int x;
			cin>>x;
			q.push(x);
		}
		else if(op==2)
		{
			cout<<q.top()<<endl;
		}
		else
		{
			q.pop();
		}
	}
	return 0;
}