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