import java.util.*;

public class arbitrage{
static String[] curr1;
static String[] curr2;
static int[] rate1;
static int[] rate2;
static int[] usage;
  static int numRates;
  static boolean konec;
  static void vymena(String start, double zacatek, String mena, boolean prvni){
	//System.out.println(start + zacatek + mena + prvni);
    if(mena.equals(start) && !prvni){
      if(zacatek > 1.0){
        System.out.println("Arbitrage");
        konec = true;
      }
      if(zacatek + 0.000001 > 1.0)
	return;
    }
    for(int i = 0; i < rate1.length; i++){
     
      if(curr1[i].equals(mena)){
        double castka = ( zacatek / rate1[i] ) * rate2[i];
        if(!konec){
          vymena(start, castka, curr2[i], false);
        }
      }
    }
  } 
  public static void main(String[] args){
    Scanner s = new Scanner(System.in);
    for(;;){
      int numCurr = s.nextInt();
      if(numCurr == 0)
        break;
      String[] curr = new String[numCurr];
      for(int i = 0; i < numCurr; i++){
        curr[i] = s.next();
      }
      numRates = s.nextInt();
      curr1 = new String[numRates];
      curr2 = new String[numRates];
      rate1 = new int[numRates];
      rate2 = new int[numRates];
      for(int j = 0; j < numRates; j++){
       	curr1[j] = s.next(); 
       	curr2[j] = s.next(); 
        String s1 = s.next();
       	String[] s2 = s1.split(":");
	rate1[j] = Integer.parseInt(s2[0]);
	rate2[j] = Integer.parseInt(s2[1]);
      }
      for(int m=0; m < numRates; m++){
        konec = false;
        String zacMena = curr[m];
        vymena(zacMena, 1, zacMena, true);
        if(konec)
          break;
      } 
        if(!konec)
	System.out.println("Ok");
      konec = false;
    }
  }
}