11917

#include <iostream>
#include <cstdio>
#include <sstream>
#include <string>
#include <map>

using namespace std;

int main()
{
	int t,n,d,D;
	scanf("%d",&t);
	string sub,s;
	int kase=1,res;
	while(t--)
	{
		scanf("%d",&n);
		map<string,int> mp;
		for(int i=1;i<=n;i++)
		{
			cin>>s;
			scanf("%d",&d);
			mp[s]=d;
		}
		scanf("%d",&D);
		cin>>sub;
		res = mp[sub];
		if(res==0 || res>(D+5))
		printf("Case %d: Do your own homework!\n",kase++);
		else if(res>D && res<=(D+5))
		printf("Case %d: Late\n",kase++);
		else if(res && res<=D)
		printf("Case %d: Yesss\n",kase++);
	}
	return 0;
}