#include <bits/stdc++.h>
using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(NULL);

    int q; cin >> q;
    queue<int> qu;
    priority_queue<int, vector<int>, greater<int>> pq;

    while(q--) {
        int t; cin >> t;

        if(t == 1) {
            int x; cin >> x;
            qu.push(x);
        }
        else if(t == 2) {
            if(!pq.empty()) {
                cout << pq.top() << '\n';
                pq.pop();
            } else {
                cout << qu.front() << '\n';
                qu.pop();
            }
        }
        else {
            while(!qu.empty()) {
                pq.push(qu.front());
                qu.pop();
            }
        }
    }
}