#include<cstdio>

 #include<cstring>

 #include<iostream>

 #include<algorithm>

 using namespace std;

 int main()

 {

     int T,n,x,y;

     scanf("%d",&T);

     while(T--)

     {

         scanf("%d%d%d",&n,&x,&y);

         int f,e;

         scanf("%d",&f);

         for(int i = ;i < n;++i)

         scanf("%d",&e);

         if(x == f && y != e)

         puts("EASY");

         else if(x != f && y == e)

         puts("HARD");

         else if(x == f && y == e)

         puts("BOTH");

         else puts("OKAY");

     }

     return ;

 }