#include <cstdlib>
#include <iostream>

using namespace std;

double a[200][200];
int C;

bool testa(int start,int act,double val)
{
	//cout << "test "<<start<<" "<<act<<" "<<val<<endl;
	for(int i = 0;i < C;i++)
	if(a[act][i]>0.0000000001)
	{
//cout<<"kurs"<<endl;
		if(i==start && val*a[act][i]>999.9999999 && val*a[act][i]<1000.000001)return false;
		if(i==start && val*a[act][i]>1000.0) return true;
		
		if(testa(start,i,val*a[act][i]))return true;
	}
	return false;
}

int main(int argc, char** argv){
		

	//int C = 0;
	scanf("%d",&C);
	char cur[200][3];
	while(C)
	{
		for(int i = 0;i<200;i++)
		for(int j = 0;j<200;j++)
		a[i][j]=0.0;
		char c[3];
		for(int i = 0;i<C;i++)
		{
			cin >> c;
			for(int w = 0;w<3;w++)cur[i][w] = c[w];
		}	
		int R = 0;
		cin >> R;
		if(R == 0){cout << "Ok" << endl; cin>>C; continue;}
		for(int i = 0;i<R;i++)
		{
			int k1 = 0, k2 = 0, j = 0, h = 0;
			char c1[3],c2[3],cx;
			double exr = 0.0;
			cin >> c1;
			cin >> c2;
			cin >> k1;
			cin >> cx;
			cin >> k2;
			exr = (double)k2 / (double)k1;
			while(cur[j][0]!=c1[0] && cur[j][1]!=c1[1] && cur[j][2]!=c1[2])j++;
			while(cur[h][0]!=c2[0] && cur[h][1]!=c2[1] && cur[h][2]!=c2[2])h++;
			a[j][h]=exr;
			//cout << "a["<<j<<"]["<<h<<"]= "<<a[j][h]<<endl;
		}
		for(int i = 0;i<C;i++)
			if(testa(i,i,1000.0)){
				cout << "Arbitrage"<<endl;
				goto next;
			}
		cout << "Ok" << endl;
		next:
		cin >> C;
	}
	return 0;
}