import java.io.*;
import java.util.*;

class Clovek {
	public String jmeno;
	public boolean typ;
	public double hodnota;
	public boolean ma = false;

	public Clovek(String jmeno,String typ,double hodnota) {
		this.jmeno = jmeno;
		
		this.typ = (typ.equals("buy"));
		this.hodnota = hodnota;
	}
}

class Firma {
	Clovek[] c;
	public String nazev;
	int pocetLidi = 0;

	public Firma(int prvku) {
		c = new Clovek[prvku];
	}

	public void add(String jmeno,String typ,double hodnota) {				
		c[pocetLidi] = new Clovek(jmeno,typ,hodnota);
		pocetLidi++;
	}

	public void projdi() {	
		System.out.println(nazev);	
		for(Clovek cl : c) {
		
			System.out.print(cl.jmeno + ":");
			for(Clovek cl2 : c) {
				if(cl.typ != cl2.typ) {
					if(cl.typ) {
						if(cl.hodnota >= cl2.hodnota) {
							System.out.print(" " + cl2.jmeno);
							cl.ma = true;
						}					
					}
					else {
						if(cl.hodnota <= cl2.hodnota) {
							System.out.print(" " + cl2.jmeno);
							cl.ma = true;
						}	
					}		

				}
			}
		if(!cl.ma) {
			System.out.print(" NO-ONE");
		}
		System.out.println();
		}
	}	

} 

public class exchange {
	public static void main(String[] args) throws IOException {
	
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String s;
		StringTokenizer st ;
			s = br.readLine();
		st = new StringTokenizer(s);

		while(true) {
	
		if (s.equals("")) continue;
		if(s.equals("0 END")) break;
		//Firma f = new Firma(Integer.parseInt(st.nextToken()));
		//f.nazev = st.nextToken();
	
			while(true) {
				s = br.readLine();
				st = new StringTokenizer(s);
				if(st.countTokens() == 2) break;
				//f.add(st.nextToken(),st.nextToken(),Double.valueOf(st.nextToken()));				
			}
			
		//f.projdi();
br.close();
		}
	}

}