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

#define rep(i, n) for (int i = 0; i < (int)n; i++)

int main() {
  int n, q;
  cin >> n >> q;
  set<pair<int, string>> user, used;
  map<string, int> member;
  rep(i, q) {
    int d;
    cin >> d;
    if (d == 1) {
      string s;
      int r;
      cin >> s >> r;
      user.insert({r, s});
      member[s] = r;
    }
    if (d == 2) {
      int x;
      cin >> x;
      n -= x;
    }
    if (d == 3) {
      string s;
      int x;
      cin >> s >> x;
      user.erase({member[s], s});
      used.insert({member[s], s});
      n += x;
    }
    auto it = user.begin();
    while ((int)user.size() + (int)used.size() > n) {
      if (it == user.end())
	break;
      cout << it->second << endl;
      user.erase(*it);
      it++;
    }
    if ((int)user.size() == 0) {
      it = used.begin();
      while ((int)used.size() > n) {
	if (it == used.end())
	  break;
	cout << it->second << endl;
	used.erase(*it);
	it++;
      }
    }
  }
  return 0;
}