#include <bits/stdc++.h>
using namespace std;
#define FOR(i,m,n) for(int i=(m);i<(n);++i)
#define REP(i,n) FOR(i,0,n)
using ll = long long;
constexpr int INF = 0x3f3f3f3f;
constexpr long long LINF = 0x3f3f3f3f3f3f3f3fLL;
constexpr double EPS = 1e-8;
constexpr int MOD = 998244353;
// constexpr int MOD = 1000000007;
constexpr int DY4[]{1, 0, -1, 0}, DX4[]{0, -1, 0, 1};
constexpr int DY8[]{1, 1, 0, -1, -1, -1, 0, 1};
constexpr int DX8[]{0, -1, -1, -1, 0, 1, 1, 1};
template <typename T, typename U>
inline bool chmax(T& a, U b) { return a < b ? (a = b, true) : false; }
template <typename T, typename U>
inline bool chmin(T& a, U b) { return a > b ? (a = b, true) : false; }
struct IOSetup {
  IOSetup() {
    std::cin.tie(nullptr);
    std::ios_base::sync_with_stdio(false);
    std::cout << fixed << setprecision(20);
  }
} iosetup;

int main() {
  int n, q; cin >> n >> q;
  map<string, int> rating;
  set<pair<int, string>> on, off;
  while (q--) {
    int type; cin >> type;
    if (type == 1) {
      string s; int r; cin >> s >> r;
      rating[s] = r;
      off.emplace(r, s);
    } else if (type == 2) {
      int x; cin >> x;
      n -= x;
    } else if (type == 3) {
      string s; int x; cin >> s >> x;
      n += x;
      off.erase({rating[s], s});
      on.emplace(rating[s], s);
    }
    while (on.size() + off.size() > n) {
      if (!off.empty()) {
        cout << off.begin()->second << '\n';
        off.erase(off.begin());
      } else {
        on.erase(on.begin());
      }
    }
  }
  return 0;
}