#include <iostream>
#include<queue>

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

    int n, op, u;
    std::cin >> n;
    while (std::cin >> n) {
        std::priority_queue<int, std::vector<int>, std::greater<>> priority_queue;
        for (int _ = 0; _ < n; _++) {
            std::cin >> op;
            if (op == 1) {
                std::cin >> u;
                priority_queue.push(u);
            } else {
                std::cout << priority_queue.top() << std::endl;
                priority_queue.pop();
            }
        }
    }

    return 0;
}