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

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

    int q;
    cin >> q;
    vector<pair<int, int>> Q;
    while (q--) {
        int type;
        cin >> type;
        if (type == 1) {
            int s, w;
            cin >> s >> w;
            Q.emplace_back(s, w);
        }
        else if (type == 2) {
            int id;
            cin >> id;
            Q[id - 1].first = 0;
        }
        else {
            int64_t b;
            cin >> b;
            vector<pair<int, int>> res;
            for (int i = 0; i < int(Q.size()); ++i) {
                if (b == 0) { break; }
                if (Q[i].first == 0) { continue; }
                if (Q[i].first <= b) {
                    res.emplace_back(i + 1, Q[i].first);
                    b -= Q[i].first;
                    Q[i].first = 0;
                }
                else if (Q[i].second) {
                    res.emplace_back(i + 1, b);
                    Q[i].first -= b;
                    b = 0;
                }
            }
            cout << res.size() << '\n';
            for (auto [id, s] : res) {
                cout << id << ' ' << s << '\n';
            }
        }
    }
    return 0;
}