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

int main(){
	set<pair<int,string>> data1;
	set<pair<int,string>> data2;
	int N,Q;
	cin >> N >> Q;
	int P=0;//部室にいる人数
	for(;Q--;){
		int c;
		cin >> c;
		if(c==1){
			string s;
			int r;
			cin >> s >> r;
			if(N==0){
				cout << s << endl;
				continue;
			}
			P++;
			N--;
			data2.insert(make_pair(r,s));
			continue;
		}
		if(c==2){
			int x;
			cin >> x;
			//x個使用不能に
			N-=x;
			while(N<0){
				P--;
				N++;
				if(!data2.empty()){
					pair<int,string> p=*begin(data2);
					cout << p.second << endl;
					data2.erase(p);
					continue;
				}
				pair<int,string> p=*begin(data1);
				//cout << p.second << endl;
				data1.erase(p);
			}
			continue;
		}
		string s;
		int x;
		cin >> s >> x;
		N+=x;
		pair<int,string> q=make_pair(-1,"");
		for(auto p : data2){
			if(p.second==s){
				q=p;
				break;
			}
		}
		if(q.first!=-1){
			data2.erase(q);
			data1.insert(q);
		}
	}
}