#include<iostream>
#include<cstdio>
#include<cstdlib>
#include<cstring>
using namespace std;
int number;
struct hehe
{
	string s;
	int fen;
	int jin;
}w[250000];
int sc=0;
int cmp(const void *a,const void *b)
{
	struct hehe *c=(struct hehe *)a;
	struct hehe *d=(struct hehe *)b;
	if(c->fen != d->fen) return d->fen - c->fen;
	else if (c->fen == d-> fen) return c-> jin - d->jin;
} 

int main()
{
	freopen ("lp.in","r",stdin);
	freopen ("lp.out","w",stdout);
	scanf("%d\n",&number);
	for (int p=0;p<number;p++)
	{
		int lq;
		char q[100];
		gets(q);
		lq=strlen(q);
		if (q[0]=='+')
		{
			string str;
			int i=1;
            while (q[i]!=' ')
            {
                str+=q[i];
                i++;
            }
			int o=-1;
			for (int i=0;i<sc;i++)
			{
				if (w[i].s==str)
				{
					o=i;
					break;
				}
			}
			i++;
			int num=0;
			while (i<lq)
			{
				num*=10;
				num+=q[i]-'0';
				i++;
			}
			if (o==-1)
			{
				w[sc].s=str;
				w[sc].fen=num;
				w[sc].jin=sc;
				sc++;
			}
			else
			{
				w[o].fen=num;
			}
			continue;
		}
		if (q[0]=='?'&&q[1]>='0'&&q[1]<='9')
		{
			int num=0;
			int i=1;
			while (i<lq)
			{
				num*=10;
				num+=q[i]-'0';
				i++;
			}
			qsort(w,sc,sizeof(w[0]),cmp);
			for (i=num-1;i<num+9&&i<sc;i++)
			{
				cout<<w[i].s<<' ';
			}
			cout<<endl;
		}
		else
		{
			string str;
			int i=1;
            while (q[i]!=' '&&i<lq)
            {
                str+=q[i];
                i++;
            }
			qsort(w,sc,sizeof(w[0]),cmp);
			for (int i=0;i<sc;i++)
			{
				if (w[i].s==str)
				{
					cout<<i+1<<endl;
					break;
				}
			}
		}
	}
	return 0;
}