#include<bits/stdc++.h> using namespace std; int main(){ int a,b,c; cin>>a; for(int i=1;i<=a;i++){ cin>>b>>c; if(b+c<=6&&b>c) cout<<"XDZ"<<endl; else if(b+c<=6&&b<c) cout<<"YY"<<endl; else if(b+c>6&&b<c) cout<<"XDZ"<<endl; else if(b+c>6&&b>c) cout<<"YY"<<endl; else if(b==c) cout<<"DOGFALL"<<endl; } return 0; }