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