for i in range(1,int(input())+1):
a,b = map(int,input().split())
if a<=b:
print("Data Set {}:\nno drought".format(i))
elif a<=5*b:
print("Data Set {}:\ndrought".format(i))
else:
cnt = 1
k = 5
while b * k * 5 <a:
k*=5
cnt+=1
print("Data Set {}:\n{}drought".format(i,"mega "*cnt))
print()