#include <bits/stdc++.h>
using namespace std;
int main()
{
int n;
cin>>n;
int tc=1;
while(n--)
{
int input;
cin>>input;
map<string,int>m;
string s;
int d;
for(int i=1;i<=input;i++)
{
cin>>s>>d;
m[s]=d;
}
int D;
cin>>D;
string k;
cin>>k;
printf ("Case %d: ", tc++);
if ( m [k] && m [k] <= D )
printf ("Yesss\n");
else if ( m [k] && m [k] <= D + 5 )
printf ("Late\n");
else
printf ("Do your own homework!\n");
}
return 0;
}