#include <iostream>
#include <string>
using namespace std;

int main()
{
	int T,n,t,t1,t2;
	int count1=0,count2=0;
	int a[10010],b[10010];
	scanf("%d",&T); 
	while(T--)
	{
		scanf("%d",&n);
		for(int i=0;i<=n;i++)
		{
			scanf("%d",&a[i]);
		}
		for(int i=0;i<=n;i++)
		{
			scanf("%d",&b[i]);
		}
		for(int i=n;i>=0;i--)
		{
			if(a[i])
			{
				count1=i;
				break;
			}
		 }
		for(int i=n;i>=0;i--)
		{
			if(b[i])
			{
				count2=i;
				break;
			}
		 } 
		if(count1>count2)
			printf("infty\n");
		else if(count1<count2)
			printf("0 1\n");
		else
		{
			t1=a[count1];
			t2=b[count2];
			if(t1>t2)
			{
				int temp;
				temp=t1;
				t1=t2;
				t2=temp;
			}
			while(t2!=0)
			{
				t=t1%t2;
				t1=t2;
				t2=t;
			}
			printf("%d %d",a[count1]/t1,b[count2]/t1);
		}
		
	}
}