#include <iostream>
#include <string>
#include <string.h>

using namespace std;

int main()
{
    bool vysl = false;
  int numC;
  int count,poma,pomb;
  string buf[200];
  int price[200];
  string a,b;
  while(cin >> numC)
{
    vysl = false;
    if(numC == 0)
        break;
    
    for(int i = 0; i<numC; i++)
    {
        cin >> buf[i];
    }
    cin >> count;
    for(int i=0;i<count;i++)
    {
        cin >> a; cin >> b;
        scanf("%d:%d",&poma,&pomb);
        //cout << poma << " : " << pomb << endl;
        for(int i = 0; i< numC;i++)
        {
            if(a == buf[i])
                price[i]-=poma;
            if(b == buf[i])
                price[i]+=pomb;
        }
    }
    for(int i=1;i<numC;i++)
    {
        if(price[i-1]>=price[i])
        {
            vysl = true;
            break;
        }
            
    }
    if(vysl)
        cout << "Ok" << endl;
    else
        cout << "Arbitrage" << endl;
}
  return 0;
}